Iowa. University. Institute of Public Affairs. (1955). A guide to Iowa child caring and placing agencies. Institute of Public Affairs, State University of Iowa, State Department of Social Welfare, Iowa Association of Children's Agencies and Institutions, cooperating. s.n.
Čikaški stil citiranja (17. izdanje)Iowa. University. Institute of Public Affairs. A Guide to Iowa Child Caring and Placing Agencies. Institute of Public Affairs, State University of Iowa, State Department of Social Welfare, Iowa Association of Children's Agencies and Institutions, Cooperating. Iowa City: s.n, 1955.
MLA način citiranja (9. izdanje)Iowa. University. Institute of Public Affairs. A Guide to Iowa Child Caring and Placing Agencies. Institute of Public Affairs, State University of Iowa, State Department of Social Welfare, Iowa Association of Children's Agencies and Institutions, Cooperating. s.n, 1955.