Cita APA (7a ed.)
Khalifa, H., & El-Shafei, M. (1965). Milk yield of Sudanese cattle as affected by the age of the cow.
Cita Chicago Style (17a ed.)
Khalifa, H.A, y M.M El-Shafei. Milk Yield of Sudanese Cattle as Affected by the Age of the Cow. 1965.
Cita MLA (9a ed.)
Khalifa, H.A, y M.M El-Shafei. Milk Yield of Sudanese Cattle as Affected by the Age of the Cow. 1965.
Precaución: Estas citas no son 100% exactas.