Gaya APA

Sussman, J, R., Levitt, B, B. (1989). Before You Conceive : The Complete Prepregnancy Guide . New York: Bantam Books.

Gaya MLA

Sussman, John, R.., Levitt, B., Blake. "Before You Conceive : The Complete Prepregnancy Guide". New York: Bantam Books, 1989. Text.