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
"Williams, Robin Murphy","The reduction of intergroup tensions : a survey of research on problems of ethnic, racial, and religious group relations",,Social Science Research Council,1947,Bulletin,,,,https://cir.nii.ac.jp/crid/1130000795026557440