Gaya APA

Schneider, K, M., Patrick, S, K. (2009). Pre test Obstetrics and Gynecology (12). USA: The Mc Graw-Hill Companies.

Gaya MLA

Schneider, Karen, M., Patrick, Stephen, K.. "Pre test Obstetrics and Gynecology". 12 USA: The Mc Graw-Hill Companies, 2009. Teks (Text).