Gaya APA

G, B., K, F. (2005). Drug in Pregnancy and lactation : A refernce Guide to fetal and Neonatal Risk . Philadelphia: Lippincott William and Wilkins.

Gaya MLA

G, Briggs,Gerald., K, Freeman,Roger. "Drug in Pregnancy and lactation : A refernce Guide to fetal and Neonatal Risk". Philadelphia: Lippincott William and Wilkins, 2005. print.