APA

I. Douglas R. Gordon, .Douglas-Stromme operative obstetrics. New York: Appleton-Century.

Chicago

I. Douglas R. Gordon, .Douglas-Stromme operative obstetrics. New York: Appleton-Century.

Harvard

I. Douglas R. Gordon, .Douglas-Stromme operative obstetrics. New York: Appleton-Century.

MLA

I. Douglas R. Gordon, .New York: Appleton-Century. .