United States. Bureau of the Census. 1977 census of construction industries: Industry series, operative builders, SIC 1531.
Chicago Style (17th ed.) CitationUnited States. Bureau of the Census. 1977 Census of Construction Industries: Industry Series, Operative Builders, SIC 1531.
MLA (9th ed.) CitationUnited States. Bureau of the Census. 1977 Census of Construction Industries: Industry Series, Operative Builders, SIC 1531.
Warning: These citations may not always be 100% accurate.