APA

U.S. Department of Labor. Bureau of Labor Statistics. Bulletin nr 917, . (1947). Hours of work and output. Washington DC: U.S. Department of Labor. Bureau of Labor Statistics. Bulletin nr 917.

Chicago

U.S. Department of Labor. Bureau of Labor Statistics. Bulletin nr 917, . 1947. Hours of work and output. Washington DC: U.S. Department of Labor. Bureau of Labor Statistics. Bulletin nr 917.

Harvard

U.S. Department of Labor. Bureau of Labor Statistics. Bulletin nr 917, . (1947). Hours of work and output. Washington DC: U.S. Department of Labor. Bureau of Labor Statistics. Bulletin nr 917.

MLA

U.S. Department of Labor. Bureau of Labor Statistics. Bulletin nr 917, . Hours of work and output. Washington DC: U.S. Department of Labor. Bureau of Labor Statistics. Bulletin nr 917. 1947.