Cita APA (7a ed.)
Kwari, J., Kamara, A., Ekeleme, F., & Omoigui, L. (2009). Relation of yields of soybean and maize to sulphur, zinc and copper status of soils under intensifying cropping systems in the tropical savannas of northeast Nigeria.
Cita Chicago Style (17a ed.)
Kwari, J.D, A.Y Kamara, F. Ekeleme, y L.O Omoigui. Relation of Yields of Soybean and Maize to Sulphur, Zinc and Copper Status of Soils Under Intensifying Cropping Systems in the Tropical Savannas of Northeast Nigeria. 2009.
Cita MLA (9a ed.)
Kwari, J.D, et al. Relation of Yields of Soybean and Maize to Sulphur, Zinc and Copper Status of Soils Under Intensifying Cropping Systems in the Tropical Savannas of Northeast Nigeria. 2009.
Precaución: Estas citas no son 100% exactas.