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 "Sundel, Sandra Stone and Sundel, Martin and University of Michigan. Continuing Education Program in the Human Services",Be assertive : a practical guide for human service workers,,Sage Publications,1980,Sage human services guides,,0803912897,,https://cir.nii.ac.jp/crid/1130000797280002432