"下総台地" [Shimōsa Plateau]. Nihon Daihyakka Zensho (Nipponika) (in Japanese). Tokyo: Shogakukan. 2012. OCLC153301537. Archived from the original on 2007-08-25. Retrieved 2012-07-27.
"栗山川" [Kuriyama River]. Nihon Rekishi Chimei Taikei (in Japanese). Tokyo: Shogakukan. 2012. OCLC173191044. dlc 2009238904. Archived from the original on 2007-08-25. Retrieved 2012-07-27.
"Teganuma". Encyclopedia of Japan. Tokyo: Shogakukan. 2012. OCLC56431036. Archived from the original on 2007-08-25. Retrieved 2012-07-21.
"Inbanuma". Encyclopedia of Japan. Tokyo: Shogakukan. 2012. OCLC56431036. Archived from the original on 2007-08-25. Retrieved 2012-07-21.
"水郷筑波国定公園". Nihon Daihyakka Zensho (Nipponika) (in Japanese). Tokyo: Shogakukan. 2012. OCLC153301537. Archived from the original on 2007-08-25. Retrieved 2012-07-27.
"大倉南貝塚" [Ōkuraminami Shell Mound]. Nihon Rekishi Chimei Taikei (in Japanese). Tokyo: Netto Adobansusha. 2011. OCLC663416079. Archived from the original on 2007-08-25. Retrieved 2011-11-09.
"下総国" [Shimōsa Province]. Nihon Rekishi Chimei Taikei (in Japanese). Tokyo: Shogakukan. 2012. OCLC173191044. dlc 2009238904. Archived from the original on 2007-08-25. Retrieved 2012-07-27.
"下総国" [Shimōsa Province]. Nihon Daihyakka Zensho (Nipponika) (in Japanese). Tokyo: Shogakukan. 2012. OCLC153301537. Archived from the original on 2007-08-25. Retrieved 2012-07-15.
"千葉県:総論 > 近現代の歩み > 〔東京湾の要塞化〕" [Chiba Prefecture--General Overview--Modern history--Fortification of Tokyo Bay]. Nihon Rekishi Chimei Taikei (in Japanese). Tokyo: Netto Adobansusha. 2011. OCLC663416079. Archived from the original on 2007-08-25. Retrieved 2011-11-09.
"千葉(県):産業" [Chiba Prefecture: Economy]. Nihon Daihyakka Zensho (Nipponika) (in Japanese). Tokyo: Shogakukan. 2012. OCLC153301537. Archived from the original on 2007-08-25. Retrieved 2012-07-27.
jst.go.jp
jstage.jst.go.jp
Nakazawa, Tsutomu; Nakazato, Hiroomi (2005). 関東平野中央部に分布する更新統下総層群の堆積サイクルとテフロクロノロジー [Depositional cycles and tephrochronology of Pleistocene Shimosa Group in central Kanto Plain, central Japan] (PDF). Chishitsugaku Zasshi [Journal of the Geological Society of Japan] (in Japanese). 111 (2). Tokyo: Nihon Chishitsu Gakkai: 87–88. Retrieved July 27, 2012.
Okazaki, Hiroko; Sato, Hiroyuki (2000). 中部更新統下総層群薮層から復元された砂階-内湾システム [Spit-bay depositional system recognized in the Yabu Formation, Shimosa Group in the Kisarazu Plateau, Chiba Prefecture, Japan] (PDF). Journal of the Sedimentological Society of Japan (in Japanese). 52 (52). Osaka, Japan: Nihon Taiseki Gakkai: 70–73. Retrieved July 27, 2012.
loc.gov
lccn.loc.gov
Geology and mineral resources of Japan. Kawasaki-shi: Geological Survey of Japan. 1956. p. 85. LCCN57001921. OCLC2044974.
Van Couvering, John A., ed. (1997). The Pleistocene boundary and the beginning of the Quaternary. World and regional geology series. Vol. 9. Cambridge, U.K.: Cambridge University Press. p. 244. ISBN9780521341158. LCCN95026529. OCLC33899950.
Ogasawara, Nagakazu, ed. (1971). 千葉県の歴史 [History of Chiba Prefecture]. 県史シリーズ [Kenshi shirīzu] (in Japanese). Vol. 12. Kawamura, Masaru (1 ed.). Tokyo: Yamakawa Shuppansha. p. 85. LCCN78788618. OCLC33876960.
mod.go.jp
下総航空基地概要 [Overview of Shimifusa Air Base] (in Japanese). Kashiwa, Chiba Prefecture: JMSDF Shimohusa Air Base. 2011. Retrieved July 27, 2012.
"下総台地" [Shimōsa Plateau]. Nihon Daihyakka Zensho (Nipponika) (in Japanese). Tokyo: Shogakukan. 2012. OCLC153301537. Archived from the original on 2007-08-25. Retrieved 2012-07-27.
"栗山川" [Kuriyama River]. Nihon Rekishi Chimei Taikei (in Japanese). Tokyo: Shogakukan. 2012. OCLC173191044. dlc 2009238904. Archived from the original on 2007-08-25. Retrieved 2012-07-27.
"Teganuma". Encyclopedia of Japan. Tokyo: Shogakukan. 2012. OCLC56431036. Archived from the original on 2007-08-25. Retrieved 2012-07-21.
"Inbanuma". Encyclopedia of Japan. Tokyo: Shogakukan. 2012. OCLC56431036. Archived from the original on 2007-08-25. Retrieved 2012-07-21.
"水郷筑波国定公園". Nihon Daihyakka Zensho (Nipponika) (in Japanese). Tokyo: Shogakukan. 2012. OCLC153301537. Archived from the original on 2007-08-25. Retrieved 2012-07-27.
"大倉南貝塚" [Ōkuraminami Shell Mound]. Nihon Rekishi Chimei Taikei (in Japanese). Tokyo: Netto Adobansusha. 2011. OCLC663416079. Archived from the original on 2007-08-25. Retrieved 2011-11-09.
"下総国" [Shimōsa Province]. Nihon Rekishi Chimei Taikei (in Japanese). Tokyo: Shogakukan. 2012. OCLC173191044. dlc 2009238904. Archived from the original on 2007-08-25. Retrieved 2012-07-27.
"下総国" [Shimōsa Province]. Nihon Daihyakka Zensho (Nipponika) (in Japanese). Tokyo: Shogakukan. 2012. OCLC153301537. Archived from the original on 2007-08-25. Retrieved 2012-07-15.
"千葉県:総論 > 近現代の歩み > 〔東京湾の要塞化〕" [Chiba Prefecture--General Overview--Modern history--Fortification of Tokyo Bay]. Nihon Rekishi Chimei Taikei (in Japanese). Tokyo: Netto Adobansusha. 2011. OCLC663416079. Archived from the original on 2007-08-25. Retrieved 2011-11-09.
"千葉(県):産業" [Chiba Prefecture: Economy]. Nihon Daihyakka Zensho (Nipponika) (in Japanese). Tokyo: Shogakukan. 2012. OCLC153301537. Archived from the original on 2007-08-25. Retrieved 2012-07-27.
"下総台地" [Shimōsa Plateau]. Nihon Daihyakka Zensho (Nipponika) (in Japanese). Tokyo: Shogakukan. 2012. OCLC153301537. Archived from the original on 2007-08-25. Retrieved 2012-07-27.
Geology and mineral resources of Japan. Kawasaki-shi: Geological Survey of Japan. 1956. p. 85. LCCN57001921. OCLC2044974.
Van Couvering, John A., ed. (1997). The Pleistocene boundary and the beginning of the Quaternary. World and regional geology series. Vol. 9. Cambridge, U.K.: Cambridge University Press. p. 244. ISBN9780521341158. LCCN95026529. OCLC33899950.
"栗山川" [Kuriyama River]. Nihon Rekishi Chimei Taikei (in Japanese). Tokyo: Shogakukan. 2012. OCLC173191044. dlc 2009238904. Archived from the original on 2007-08-25. Retrieved 2012-07-27.
"Teganuma". Encyclopedia of Japan. Tokyo: Shogakukan. 2012. OCLC56431036. Archived from the original on 2007-08-25. Retrieved 2012-07-21.
"Inbanuma". Encyclopedia of Japan. Tokyo: Shogakukan. 2012. OCLC56431036. Archived from the original on 2007-08-25. Retrieved 2012-07-21.
"水郷筑波国定公園". Nihon Daihyakka Zensho (Nipponika) (in Japanese). Tokyo: Shogakukan. 2012. OCLC153301537. Archived from the original on 2007-08-25. Retrieved 2012-07-27.
"大倉南貝塚" [Ōkuraminami Shell Mound]. Nihon Rekishi Chimei Taikei (in Japanese). Tokyo: Netto Adobansusha. 2011. OCLC663416079. Archived from the original on 2007-08-25. Retrieved 2011-11-09.
"下総国" [Shimōsa Province]. Nihon Rekishi Chimei Taikei (in Japanese). Tokyo: Shogakukan. 2012. OCLC173191044. dlc 2009238904. Archived from the original on 2007-08-25. Retrieved 2012-07-27.
"下総国" [Shimōsa Province]. Nihon Daihyakka Zensho (Nipponika) (in Japanese). Tokyo: Shogakukan. 2012. OCLC153301537. Archived from the original on 2007-08-25. Retrieved 2012-07-15.
"千葉県:総論 > 近現代の歩み > 〔東京湾の要塞化〕" [Chiba Prefecture--General Overview--Modern history--Fortification of Tokyo Bay]. Nihon Rekishi Chimei Taikei (in Japanese). Tokyo: Netto Adobansusha. 2011. OCLC663416079. Archived from the original on 2007-08-25. Retrieved 2011-11-09.
Ogasawara, Nagakazu, ed. (1971). 千葉県の歴史 [History of Chiba Prefecture]. 県史シリーズ [Kenshi shirīzu] (in Japanese). Vol. 12. Kawamura, Masaru (1 ed.). Tokyo: Yamakawa Shuppansha. p. 85. LCCN78788618. OCLC33876960.
"千葉(県):産業" [Chiba Prefecture: Economy]. Nihon Daihyakka Zensho (Nipponika) (in Japanese). Tokyo: Shogakukan. 2012. OCLC153301537. Archived from the original on 2007-08-25. Retrieved 2012-07-27.