 | The Improvement of Tropical and Subtropical Rangelands (BOSTID) |
 |  | Overview: Dimensions of a worldwide environmental crisis |
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References
Breman, H. and C.T. deWit. 1983. Rangeland productivity and exploitation in the Sahel. Science 221:1341-1347.
National Research Council. 1981. Environmental Degradation in Mauritania. National Academy Press, Washington, D.C., USA.
National Research Council. 1983a. Agroforestry in the West African Sahel. National Academy Press, Washington, D.C., USA.
National Research Council. 1983b. Environmental Change in the West African Sahel. National Academy Press, Washington, D.C., USA.
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