APA
(1986). Journal of Obstetrics and Gynecology Survey. London: Academic Press.
Chicago
1986. Journal of Obstetrics and Gynecology Survey. London: Academic Press.
Harvard
(1986). Journal of Obstetrics and Gynecology Survey. London: Academic Press.
MLA
Journal of Obstetrics and Gynecology Survey. London: Academic Press. 1986.
