APA
(1984). Journal of obstetrics and Gynecology. New York: Elservier.
Chicago
1984. Journal of obstetrics and Gynecology. New York: Elservier.
Harvard
(1984). Journal of obstetrics and Gynecology. New York: Elservier.
MLA
Journal of obstetrics and Gynecology. New York: Elservier. 1984.
