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 "Cassady, Ralph",Price warfare in business competition : a study of abnormal competitive behavior,,"Bureau of Business and Economic Research, Graduate School of Business Administration, Michigan State Univ.",1963,Occasional paper,,,,https://cir.nii.ac.jp/crid/1130000797572644608