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 "Kalp, Earl S. and Morgan, Robert M. and North Central Association of Colleges and Secondary Schools. Committee on Experimental Units",Democracy and its competitors,,Ginn,1940,Unit studies in American problems,,,,https://cir.nii.ac.jp/crid/1130000796178976896