Cita APA (7a ed.)
Zemmelink, G., Romney, D. L., & Kaitho, R. (1999). Dairy farming in Kenya: Resources and nitrogen flows. International Livestock Research Institute.
Cita Chicago Style (17a ed.)
Zemmelink, Gerritt, Dannie L. Romney, y R.J Kaitho. Dairy Farming in Kenya: Resources and Nitrogen Flows. International Livestock Research Institute, 1999.
Cita MLA (9a ed.)
Zemmelink, Gerritt, et al. Dairy Farming in Kenya: Resources and Nitrogen Flows. International Livestock Research Institute, 1999.
Precaución: Estas citas no son 100% exactas.