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 "MacGregor, Morris J. and Nalty, Bernard C.","Segregation entrenched, 1917-1940",,Scholarly Resources,1977,Blacks in the United States Armed Forces : basic documents,,0842021124,,https://cir.nii.ac.jp/crid/1130285378648804736