16 resultados para Grassland Degradation

em University of Michigan


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Prepared for U.S. Environmental Protection Agency, Office of Research and Development, Environmental Research Laboratory, Athens, Ga., under grant no. R800371.

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National Highway Traffic Safety Administration, Washington, D.C.

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National Highway Traffic Safety Administration, Washington, D.C.

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National Highway Traffic Safety Administration, Washington, D.C.

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Based upon a dissertation by R. I. Van Hook to the Graduate Council of Clemson University in partial fulfillment of the requirements for the degree of Doctor of Philosophy.

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Mode of access: Internet.

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Technical report 6520. AD 627 210.

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"R6-F16-SO-0591."