APA (7th ed.) Zitazioa

Willson, J. R., & Carrington, E. R. (1979). Obestetrics and gynecology (6th ed.). C.V. Mosby.

Chicago Style (17th ed.) Zitazioa

Willson, J. Robert, eta Elsie Reid Carrington. Obestetrics and Gynecology. 6th ed. St. Louis, Missouri: C.V. Mosby, 1979.

MLA (9th ed.) Zitazioa

Willson, J. Robert, eta Elsie Reid Carrington. Obestetrics and Gynecology. 6th ed. C.V. Mosby, 1979.