U.S. Bureau of Labor Statistics. (1968). Employment and earnings statistics for the United States, 1909-62. Based on the 1957 Standard industrial classification.
Chicago Style (17th ed.) CitationU.S. Bureau of Labor Statistics. Employment and Earnings Statistics for the United States, 1909-62. Based on the 1957 Standard Industrial Classification. Washington, 1968.
MLA (9th ed.) CitationU.S. Bureau of Labor Statistics. Employment and Earnings Statistics for the United States, 1909-62. Based on the 1957 Standard Industrial Classification. 1968.
Warning: These citations may not always be 100% accurate.