Cita APA (7a ed.)
Olembo, R. J. (1990). Fertilizers - a benefit or a hazard to agriculture? Technical Centre for Agricultural and Rural Cooperation.
Cita Chicago Style (17a ed.)
Olembo, R. J. Fertilizers - a Benefit or a Hazard to Agriculture? Technical Centre for Agricultural and Rural Cooperation, 1990.
Cita MLA (9a ed.)
Olembo, R. J. Fertilizers - a Benefit or a Hazard to Agriculture? Technical Centre for Agricultural and Rural Cooperation, 1990.
Precaución: Estas citas no son 100% exactas.