APA-ийн эшлэл(7 дахь хэвлэлт)
ebrary, Inc, & Parnell, A. M. (1989). Contraceptive use and controlled fertility: Health issues for women and children : background papers. National Academy Press.
Чикаго-гийн эшлэл (17 дахь хэвлэлт)
ebrary, Inc, ба Allan M. Parnell. Contraceptive Use and Controlled Fertility: Health Issues for Women and Children : Background Papers. Washington, D.C.: National Academy Press, 1989.
MLA -ийн эшлэл (9 дэх хэвлэлт)
ebrary, Inc, ба Allan M. Parnell. Contraceptive Use and Controlled Fertility: Health Issues for Women and Children : Background Papers. National Academy Press, 1989.
Анхааруулга: Эдгээр ишлэлүүд үргэлж 100% үнэн зөв биш байж магадгүй.