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Grazing and rangeland development for livestock production : agriculture technology for developing countries : [a handbook for volunteers] / prep. by Howard B. Sprague, Michael D. Benge.
- Agency for international development,
- 1982.
- Washington, DC :
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Development assistance in forestry : an AID policy background paper / prep. by Emmy Simmons ; with the assist. of Michael Benge...[et al.].
- 873
- Agency for international development,
- 1980.
- Washington, DC :