Cita APA (7a ed.)
Somda, Z., Powell, J., & Bationo, B. A. (1997). Soil PH and nitrogen changes following cattle and sheep urine deposition. Informa UK Limited.
Cita Chicago Style (17a ed.)
Somda, Z.C, J.M Powell, y B. André Bationo. Soil PH and Nitrogen Changes Following Cattle and Sheep Urine Deposition. Informa UK Limited, 1997.
Cita MLA (9a ed.)
Somda, Z.C, et al. Soil PH and Nitrogen Changes Following Cattle and Sheep Urine Deposition. Informa UK Limited, 1997.
Precaución: Estas citas no son 100% exactas.