Dyfyniad APA

Guttmacher, A. F. (1964). Planning your family: The complet guide to contraception and fertility. New York: Macmillan company.

Dyfyniad Arddull Chicago

Guttmacher, Alan F. Planning Your Family: The Complet Guide to Contraception and Fertility. New York: Macmillan company, 1964.

Dyfyniad MLA

Guttmacher, Alan F. Planning Your Family: The Complet Guide to Contraception and Fertility. New York: Macmillan company, 1964.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.