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
"McGrath, M. D.",Racial income distribution in South Africa,,"Dept. of Economics, University of Natal",1977,Black/white income gap project : Interim research report,,0869801104,,https://cir.nii.ac.jp/crid/1130000797127288320