Cita APA (7a ed.)
El-Khidir, O., Khalifa, H., Khalafallah, A., & Gaili, E. (1979). A study of some economic traits in a herd of Kenana cattle (North Sudan Zebu). II. Age at first calving and effects of improved nutrition on body development and sexual maturity. Wiley.
Cita Chicago Style (17a ed.)
El-Khidir, O.A, H.A.A Khalifa, A.M Khalafallah, y E.S.E Gaili. A Study of Some Economic Traits in a Herd of Kenana Cattle (North Sudan Zebu). II. Age at First Calving and Effects of Improved Nutrition on Body Development and Sexual Maturity. Wiley, 1979.
Cita MLA (9a ed.)
El-Khidir, O.A, et al. A Study of Some Economic Traits in a Herd of Kenana Cattle (North Sudan Zebu). II. Age at First Calving and Effects of Improved Nutrition on Body Development and Sexual Maturity. Wiley, 1979.
Precaución: Estas citas no son 100% exactas.