Robert A. Hatcher & 1937-. (1980). Contraceptive technology, 1980-1981 (10th rev. ed.). Irvington Publishers.
Chicago Style aipamenaRobert A. Hatcher and 1937-. Contraceptive Technology, 1980-1981. 10th rev. ed. New York: Irvington Publishers, 1980.
MLA aipamenaRobert A. Hatcher and 1937-. Contraceptive Technology, 1980-1981. 10th rev. ed. Irvington Publishers, 1980.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.