Cita APA (7a ed.)
Khalifa, H., & Khalafallah, A. (1979). A study of some economic traits in a herd of Kenana cattle (Northern Sudan Zebu) I. Birth weight in Kenana cattle. Wiley.
Cita Chicago Style (17a ed.)
Khalifa, H.A.A, y A.M Khalafallah. A Study of Some Economic Traits in a Herd of Kenana Cattle (Northern Sudan Zebu) I. Birth Weight in Kenana Cattle. Wiley, 1979.
Cita MLA (9a ed.)
Khalifa, H.A.A, y A.M Khalafallah. A Study of Some Economic Traits in a Herd of Kenana Cattle (Northern Sudan Zebu) I. Birth Weight in Kenana Cattle. Wiley, 1979.
Precaución: Estas citas no son 100% exactas.