19 resultados para gravel

em University of Michigan


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Mode of access: Internet.

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Federal Highway Administration, Washington, D.C.

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At head of title: Canada. Department of mines. Geological survey branch.

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Absorbed Directory of cement, gypsum, lime, sand, gravel and crushed-stone plants in 1930 and assumed its volume numbering.

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Includes bibliographical references.

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Accompanied by "Supplement." (44 l. 28 cm.) Published: Lansing, Testing and Research Division, 1955.

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"This short course has been prepared as a practical guide for town and county highway superintendents in New York State."

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"Prepared in cooperation with the Illinois Department of Transportation. Division of Water Resources."