Cita APA (7a ed.)
Astatke, A., Jabbar, M., & Tanner, D. (2003). Participatory conservation tillage research: An experience with minimum tillage on an Ethiopian highland Vertisol. Elsevier.
Cita Chicago Style (17a ed.)
Astatke, A., M.A Jabbar, y D. Tanner. Participatory Conservation Tillage Research: An Experience with Minimum Tillage on an Ethiopian Highland Vertisol. Elsevier, 2003.
Cita MLA (9a ed.)
Astatke, A., et al. Participatory Conservation Tillage Research: An Experience with Minimum Tillage on an Ethiopian Highland Vertisol. Elsevier, 2003.
Precaución: Estas citas no son 100% exactas.