APA
Wilson M. A., . (1980). The ovulation method of birth regulation. Van Nostrand Reinhold Company, New York: .
Chicago
Wilson Mercedes Arzu, . 1980. The ovulation method of birth regulation. Van Nostrand Reinhold Company, New York: .
Harvard
Wilson M. A., . (1980). The ovulation method of birth regulation. Van Nostrand Reinhold Company, New York: .
MLA
Wilson Mercedes Arzu, . The ovulation method of birth regulation. Van Nostrand Reinhold Company, New York: . 1980.