ウィラメット滝閘門 (Japanese Wikipedia)

Analysis of information sources in references of the Wikipedia article "ウィラメット滝閘門" in Japanese language version.

refsWebsite

Global rank Japanese rank

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61^st place

1^st place

249^th place

859^th place

army.mil

USACE 1997. "News Release 97–127" (Press release). U.S. Army Corps of Engineers. 29 December 1997. 2009年1月16日時点のオリジナルよりアーカイブ。2007年6月10日閲覧。

USC 1908, pp. 308–310, "Appendix: Canals in Oregon". United States Congress (26 February 1908). Preliminary Report of the Inland Waterways Commission (Report). Vol. 5250. Washington, DC: U.S. Government Printing Office.
SecretaryWar 1899. The Secretary of War (19 December 1899). "Examination and Survey of Canal and Locks at Willamette Falls, Willamette River, Oregon". United States Congressional Serial Set (Report). Vol. 3974. Washington, DC: Government Printing Office.

USACE 1997. "News Release 97–127" (Press release). U.S. Army Corps of Engineers. 29 December 1997. 2009年1月16日時点のオリジナルよりアーカイブ。2007年6月10日閲覧。