Cita APA (7a ed.)
Njoroge, J. (1992). Comprendre l’agriculture biologique. Technical Centre for Agricultural and Rural Cooperation.
Cita Chicago Style (17a ed.)
Njoroge, John. Comprendre L’agriculture Biologique. Technical Centre for Agricultural and Rural Cooperation, 1992.
Cita MLA (9a ed.)
Njoroge, John. Comprendre L’agriculture Biologique. Technical Centre for Agricultural and Rural Cooperation, 1992.
Precaución: Estas citas no son 100% exactas.