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. Work Projects Administration. Northern California. Writers' Program,"San Francisco, the bay and its cities",Rev. 2nd ed,Hastings House,1947,American guide series,,,,https://cir.nii.ac.jp/crid/1130000798021987712