ebrary, Inc, & Shoupe, D. (2011). Contraception. Wiley-Blackwell.
Čikaški stil citiranja (17. izdanje)ebrary, Inc, i Donna Shoupe. Contraception. Chichester, West Sussex: Wiley-Blackwell, 2011.
MLA način citiranja (9. izdanje)ebrary, Inc, i Donna Shoupe. Contraception. Wiley-Blackwell, 2011.
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