Cita APA (7a ed.)
Sackey, A. K., Sanni, B. D., Abdullahi, S. U., & Fadason, T. (1999). Observation on the Age at First Calving in the Savannah Breeds of Cattle in Northern Nigeria.
Cita Chicago Style (17a ed.)
Sackey, Anthony K.B., Bamidele D. Sanni, Shehu U. Abdullahi, y T.S Fadason. Observation on the Age at First Calving in the Savannah Breeds of Cattle in Northern Nigeria. 1999.
Cita MLA (9a ed.)
Sackey, Anthony K.B., et al. Observation on the Age at First Calving in the Savannah Breeds of Cattle in Northern Nigeria. 1999.
Precaución: Estas citas no son 100% exactas.