APA ציטוט

Eastman, N. J. (1956). Williams Obstetrics. New York: Appleton-Century-Crofts.

Trích dẫn kiểu Chicago

Eastman, Nicholson J. Williams Obstetrics. New York: Appleton-Century-Crofts, 1956.

ציטוט MLA

Eastman, Nicholson J. Williams Obstetrics. New York: Appleton-Century-Crofts, 1956.