Gaya APA

Berkowitz, R., Cherry, S, H. (1985). Rovinsky and Guttmacher's Medical, Surgical, and Gynecologic Complications of Pregnancy (3rd ed). Baltimore: Williams \r Wilkins.

Gaya MLA

Berkowitz, Richard., Cherry, Sheldon, H. "Rovinsky and Guttmacher's Medical, Surgical, and Gynecologic Complications of Pregnancy". 3rd ed Baltimore: Williams \r Wilkins, 1985. print.