Standard specifications for construction of roads and bridges on Federal highway projects /
U.S. Department of Commerce, Bureau of Public Roads.

APA Citation

United States. Bureau of Public Roads. (1957). Standard specifications for construction of roads and bridges on Federal highway projects. Washington, D.C.: U.S. G.P.O..

MLA Citation

United States. Bureau of Public Roads. Standard Specifications for Construction of Roads And Bridges On Federal Highway Projects. Washington, D.C.: U.S. G.P.O., 1957.

Warning: These citations may not always be complete (especially for serials).