62 resultados para water conservancy and soil conservation measures

em University of Michigan


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Includes index.

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Rev. and supplemented list originally published in Sept., 1937.

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Prepared for the Cache River Joint Venture Partnership (JVP): Illinois Department of Natural Resources, The Nature Conservancy, U.S. Fish and Wildlife Service, Ducks Unlimited, Natural Resources Conservation Service.

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Grant no. R-802959.