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
"Nattrass, Jill and Duncan, Ian G.",A study of employers' attitudes towards African worker representation,,"Dept. of Economics, University of Natal",1975,Black/white income gap project : Interim research report,,0869800582,,https://cir.nii.ac.jp/crid/1130000797608029184