APA
(1957). Obstetrical and Gynecological Survey. U.S.A: The Williams & Wilkins Company.
Chicago
1957. Obstetrical and Gynecological Survey. U.S.A: The Williams & Wilkins Company.
Harvard
(1957). Obstetrical and Gynecological Survey. U.S.A: The Williams & Wilkins Company.
MLA
Obstetrical and Gynecological Survey. U.S.A: The Williams & Wilkins Company. 1957.