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 "Wollons, Roberta Lyn","Children at risk in America : history, concepts, and public policy",,State University of New York Press,1993,"SUNY series, youth social services, schooling, and public policy",,"0791411974,0791411982",,https://cir.nii.ac.jp/crid/1130000795104504448