APA

United States, . (1971). Occupational manpower and training needs: information for planning training programs for the 1970's. [Washington, D.C.]: U.S. Department of Labor, Bureau of Labor Statistics.

Chicago

United States, . 1971. Occupational manpower and training needs: information for planning training programs for the 1970's. [Washington, D.C.]: U.S. Department of Labor, Bureau of Labor Statistics.

Harvard

United States, . (1971). Occupational manpower and training needs: information for planning training programs for the 1970's. [Washington, D.C.]: U.S. Department of Labor, Bureau of Labor Statistics.

MLA

United States, . Occupational manpower and training needs: information for planning training programs for the 1970's. [Washington, D.C.]: U.S. Department of Labor, Bureau of Labor Statistics. 1971.