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 "Bloom, Gordon Falk and Fletcher, F. Marion and Perry, Charles R.","Negro employment in retail trade : a study of racial policies in the department store, drugstore, and supermarket industries",,"Industrial Research Unit, Wharton School of Finance and Commerce, University of Pennsylvania",1972,Major Industrial Research Unit studies,,0812276566,,https://cir.nii.ac.jp/crid/1130287351415121952