Cita APA (7a ed.)
Gebremedhin, B., Fernández Rivera, S., Hassena, M., Mwangi, W., & Ahmed, S. (2008). Maize and livestock: Their inter-linked roles in meeting human needs in Ethiopia. International Livestock Research Institute.
Cita Chicago Style (17a ed.)
Gebremedhin, Berhanu, S. Fernández Rivera, M. Hassena, W. Mwangi, y S. Ahmed. Maize and Livestock: Their Inter-linked Roles in Meeting Human Needs in Ethiopia. International Livestock Research Institute, 2008.
Cita MLA (9a ed.)
Gebremedhin, Berhanu, et al. Maize and Livestock: Their Inter-linked Roles in Meeting Human Needs in Ethiopia. International Livestock Research Institute, 2008.
Precaución: Estas citas no son 100% exactas.