Cita APA (7a ed.)
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.
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.
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.
Precaución: Estas citas no son 100% exactas.