Labor and material requirements for sewer works construction.

MLA

United States. Labor and material requirements for sewer works construction. [Washington, D.C.] : United States Department of Labor, Bureau of Labor Statistics, [1966]

APA

United States. (1966). Labor and material requirements for sewer works construction. [Washington, D.C.] : United States Department of Labor, Bureau of Labor Statistics.

Chicago

United States. Labor and material requirements for sewer works construction. [Washington, D.C.] : United States Department of Labor, Bureau of Labor Statistics, [1966]