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 "Richardson, G. B. (George Burr) and United States. Dept. of the Interior and Geological Survey (U.S.)","Reconnaissance of the Book cliffs coal field between Grand river, Colorado and Sunnyside, Utah",,Goverment Printing Office,1909,Bulletin,,,,https://cir.nii.ac.jp/crid/1130000797431706496