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 "Carver, David","Digital recordings of aftershocks of the October 17, 1989, Loma Prieta, California, earthquake; Santa Cruz, Los Gatos, and surrounding areas",,"U.S. Department of the Interior, U.S. Geological Survey",1989,Open-file report,,,,https://cir.nii.ac.jp/crid/1130282269999096704