APA

United States, . (1974). Occupational manpower and training needs: information for vocational counseling and planning for occupational training. [Washington, D.C.]: U.S. Department of Labor, Bureau of Labor Statistics.

Chicago

United States, . 1974. Occupational manpower and training needs: information for vocational counseling and planning for occupational training. [Washington, D.C.]: U.S. Department of Labor, Bureau of Labor Statistics.

Harvard

United States, . (1974). Occupational manpower and training needs: information for vocational counseling and planning for occupational training. [Washington, D.C.]: U.S. Department of Labor, Bureau of Labor Statistics.

MLA

United States, . Occupational manpower and training needs: information for vocational counseling and planning for occupational training. [Washington, D.C.]: U.S. Department of Labor, Bureau of Labor Statistics. 1974.