Coppock, D. L. (1990). The arid and semiarid low lands of Ethiopia: Environments, pastoral economies and issues in natural resources sustainability. Institute of Agricultural Research.
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Cita Chicago Style (17a ed.)
Coppock, D. Layne. The Arid and Semiarid Low Lands of Ethiopia: Environments, Pastoral Economies and Issues in Natural Resources Sustainability. Institute of Agricultural Research, 1990.
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Cita MLA (9a ed.)
Coppock, D. Layne. The Arid and Semiarid Low Lands of Ethiopia: Environments, Pastoral Economies and Issues in Natural Resources Sustainability. Institute of Agricultural Research, 1990.
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