APA (7th ed.) Citation

United States. Employment Service. (1949). Dictionary of occupational titles: 2nd ed. Prepared by Division of Occupational Analysis. U.S. Employment Service. United States Government Printing Office.

Chicago Style (17th ed.) Citation

United States. Employment Service. Dictionary of Occupational Titles: 2nd Ed. Prepared by Division of Occupational Analysis. U.S. Employment Service. Washington: United States Government Printing Office, 1949.

MLA (9th ed.) Citation

United States. Employment Service. Dictionary of Occupational Titles: 2nd Ed. Prepared by Division of Occupational Analysis. U.S. Employment Service. United States Government Printing Office, 1949.