著者名,書名,版表示,出版者名,出版年,シリーズ名,番号,ISBN,ISSN,URL United States. Board of Engineers for Rivers and Harbors and United States. Maritime Commission,"The ports of San Francisco, Oakland, Alameda, Richmond, and upper San Francisco bay, California",,U. S. Govt. print. off,1939,Port series,,,,https://cir.nii.ac.jp/crid/1130282273002088320