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
"International Permian-Triassic Conference, University of Calgary, 1971 and Logan, Alan and Hills, L. V. and University of Calgary and Geological Survey of Canada",The Permian and Triassic systems and their mutual boundary,,Canadian Society of Petroleum Geologists,1973,Memoir,,,,https://cir.nii.ac.jp/crid/1130000793744834304