Sixteenth census of the United States: 1940: population: the labor force (sample statistics): wage or salary income in 1939. United States Department of Commerce, Bureau of the Census, [1943].
Chicago Style (17th ed.) CitationSixteenth Census of the United States: 1940: Population: The Labor Force (sample Statistics): Wage or Salary Income in 1939. [Washington, D.C.]: United States Department of Commerce, Bureau of the Census, [1943].
MLA (9th ed.) CitationSixteenth Census of the United States: 1940: Population: The Labor Force (sample Statistics): Wage or Salary Income in 1939. United States Department of Commerce, Bureau of the Census, [1943].
Warning: These citations may not always be 100% accurate.