APA
(1976). Journal of Obstetrics and Gynecology Survey. London: Academic Press.
Chicago
1976. Journal of Obstetrics and Gynecology Survey. London: Academic Press.
Harvard
(1976). Journal of Obstetrics and Gynecology Survey. London: Academic Press.
MLA
Journal of Obstetrics and Gynecology Survey. London: Academic Press. 1976.
