970 resultados para Enamel Erosion


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"A compilation of practical tried-and-proved methods which have been developed by state agricultural colleges and extension workers, U.S. soil conservation experts, and county agricultural agents."--p. [2] of cover.

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"Printed: June 1992."

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"January 1993"

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"Authority for the preparation of this report and state participation in the flood protection recommendations contained herein is provided by the Flood Control Act of 1945 [615 ILCS 15]."--Leaf 2.

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Title also given as: Beach erosion control report on cooperative study of Pacific coast line of the State of California.

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Mode of access: Internet.

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"June 1991."

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Contribution from Soil Conservation Service.

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Caption title.