ebrary, Inc, & Parnell, A. M. (1989). Contraceptive use and controlled fertility: Health issues for women and children : background papers. National Academy Press.
Chicago-referens (17:e uppl.)ebrary, Inc, och Allan M. Parnell. Contraceptive Use and Controlled Fertility: Health Issues for Women and Children : Background Papers. Washington, D.C.: National Academy Press, 1989.
MLA-referens (9:e uppl.)ebrary, Inc, och Allan M. Parnell. Contraceptive Use and Controlled Fertility: Health Issues for Women and Children : Background Papers. National Academy Press, 1989.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.