Não informado. (1979). Research in Social Problems and Public Policy. JAI Press.
Chicago-referens (17:e uppl.)Não informado. Research in Social Problems and Public Policy. Amsterdam: JAI Press, 1979.
MLA-referens (8:e uppl.)Não informado. Research in Social Problems and Public Policy. JAI Press, 1979.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.