APA aipamena

Eastman, N. J., Hellman, L. M., & Stander, H. J. 1. W. O. (1966). Williams Obstetrics (13th ed.). Appleton-Century-Crofts.

Chicago Style aipamena

Eastman, Nicholson J., Louis M. Hellman, and Henricus Johannes 1894-1948. Williams Obstetrics Stander. Williams Obstetrics. 13th ed. New York: Appleton-Century-Crofts, 1966.

MLA aipamena

Eastman, Nicholson J., et al. Williams Obstetrics. 13th ed. Appleton-Century-Crofts, 1966.