Pfeifer, C., Sahlu, D., Abebe, Y., & Omolo, A. (2011). Trainers' manual accompanying "geographic information system: Practical training manual for agricultural research centers". Amhara Regional Agricultural Research Institute, Ethiopia.
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Cita Chicago Style (17a ed.)
Pfeifer, Catherine, D. Sahlu, Yenenesh Abebe, y Abisalom Omolo. Trainers' Manual Accompanying "Geographic Information System: Practical Training Manual for Agricultural Research Centers". Amhara Regional Agricultural Research Institute, Ethiopia, 2011.
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Cita MLA (9a ed.)
Pfeifer, Catherine, et al. Trainers' Manual Accompanying "Geographic Information System: Practical Training Manual for Agricultural Research Centers". Amhara Regional Agricultural Research Institute, Ethiopia, 2011.
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