Cita APA (7a ed.)
Kassie, M., Pender, J. L., Yesuf, M., Kohlin, G., Bluffstone, R., & Mulugeta, E. (2007). Impact of soil conservation on crop production in the Northern Ethiopian Highlands. International Food Policy Research Institute.
Cita Chicago Style (17a ed.)
Kassie, Menale, John L. Pender, Mahmud Yesuf, Gunnar Kohlin, Randy Bluffstone, y Elias Mulugeta. Impact of Soil Conservation on Crop Production in the Northern Ethiopian Highlands. International Food Policy Research Institute, 2007.
Cita MLA (9a ed.)
Kassie, Menale, et al. Impact of Soil Conservation on Crop Production in the Northern Ethiopian Highlands. International Food Policy Research Institute, 2007.
Precaución: Estas citas no son 100% exactas.