Gaya APA

NORWITZ, E., Schorge, J. (2007-c.1). At a Glance Obstetri & Ginekologi (2). Jakarta: Erlangga.

Gaya MLA

NORWITZ, E., Schorge, J.. At a Glance Obstetri & Ginekologi. 2 Jakarta: Erlangga, 2007-c.1. Text.