Gaya APA

Rubin, P., Ramsay, M. (2008). Prescribing in Pregnancy, 4th Ed. (4th Ed.). : Blackwell Publishing.

Gaya MLA

Rubin, Peter., Ramsay, Margaret. "Prescribing in Pregnancy, 4th Ed.". 4th Ed. : Blackwell Publishing, 2008. Text.