"火山列島" [Volcano Islands]. Nihon Daihyakka Zensho (Nipponika) (in Japanese). Tokyo: Shogakukan. 2013. OCLC153301537. Archived from the original on August 25, 2007. Retrieved 2013-10-09.
"火山列島" [Volcano Islands]. Nihon Rekishi Chimei Taikei (in Japanese). Tokyo: Shogakukan. 2013. OCLC173191044. Archived from the original on August 25, 2007. Retrieved 2013-10-09.
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"火山列島" [Volcano Islands]. Nihon Daihyakka Zensho (Nipponika) (in Japanese). Tokyo: Shogakukan. 2013. OCLC153301537. Archived from the original on August 25, 2007. Retrieved 2013-10-09.
"火山列島" [Volcano Islands]. Nihon Rekishi Chimei Taikei (in Japanese). Tokyo: Shogakukan. 2013. OCLC173191044. Archived from the original on August 25, 2007. Retrieved 2013-10-09.
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"火山列島" [Volcano Islands]. Nihon Daihyakka Zensho (Nipponika) (in Japanese). Tokyo: Shogakukan. 2013. OCLC153301537. Archived from the original on August 25, 2007. Retrieved 2013-10-09.
"火山列島" [Volcano Islands]. Nihon Rekishi Chimei Taikei (in Japanese). Tokyo: Shogakukan. 2013. OCLC173191044. Archived from the original on August 25, 2007. Retrieved 2013-10-09.