Dyfyniad APA
Greenhill, J. (1946). Year bookof obstetrics and gynecology 1946 (1a.ed.). The yearbook publisher.
Dyfyniad Arddull Chicago
Greenhill, J.P. Year Bookof Obstetrics and Gynecology 1946. 1a.ed. Chicago: The yearbook publisher, 1946.
Dyfyniad MLA
Greenhill, J.P. Year Bookof Obstetrics and Gynecology 1946. 1a.ed. The yearbook publisher, 1946.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.