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 "Maryland Geological Survey and Clark, William Bullock and Goldman, Marcus I. (Marcus Isaac), b. 1881 and Berry, Edward Wilber, b. 1875 and Gardner, Julia Anna, b. 1882 and Pilsbry, Henry Augustus, b. 1862 and Bassler, Ray S. (Ray Smith), b. 1878 and Stephenson, LLoyd William, b. 1876",Maryland geological survey : Upper cretaceous,,The Johns Hopkins press,1916,,,,,https://cir.nii.ac.jp/crid/1130000795357606144