Zawacki, A. A. (1971). A textbook for family planning field workers. Community and Family Study Center, University of Chicago.
Chicago-referens (17:e uppl.)Zawacki, April Allison. A Textbook for Family Planning Field Workers. Chicago: Community and Family Study Center, University of Chicago, 1971.
MLA-referens (8:e uppl.)Zawacki, April Allison. A Textbook for Family Planning Field Workers. Community and Family Study Center, University of Chicago, 1971.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.