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 "Symposium on Rock Mechanics and Hartman, Howard L.","Proceedings of the fourth Symposium on Rock Mechanics, March 30, 31, April 1, 1961",,"College of Mineral Industries, the Pennsylvania State University",1961,The Pennsylvania State College bulletin : mineral industries experiment station,,,,https://cir.nii.ac.jp/crid/1130282269056713088