A framework and checklist for evaluating soil and water conservation programs. Report to the Congress of the United States
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Format: | Texto biblioteca |
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Washington, DC (USA) U.S. General Accounting Office
Mar
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Subjects: | SOIL CONSERVATION, WATER CONSERVATION, CONSERVATION DES SOLS, CONSERVATION DE L'EAU, CONSERVACION DE SUELOS, CONSERVACION DE AGUAS, |
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