Cita APA (7a ed.)
Gryseels, G., Astatke, A., Anderson, F., & Asamenew, G. (1984). The use of single oxen for crop cultivation in Ethiopia. International Livestock Centre for Africa.
Cita Chicago Style (17a ed.)
Gryseels, Guido, A. Astatke, F.M Anderson, y G. Asamenew. The Use of Single Oxen for Crop Cultivation in Ethiopia. International Livestock Centre for Africa, 1984.
Cita MLA (9a ed.)
Gryseels, Guido, et al. The Use of Single Oxen for Crop Cultivation in Ethiopia. International Livestock Centre for Africa, 1984.
Precaución: Estas citas no son 100% exactas.