Specifications for construction of roads and bridges in national forests and national parks, as revised July 15, 1941

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Specifications for construction of roads and bridges in national forests and national parks, as revised July 15, 1941

Federal works agency public roads administration

U.S. Government Printing Office, 1948

rev.

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注記

Index: p. 508-512

"This publication may be designated as FP-41"

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