United States. Bureau of Labor Statistics

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• Trade and employment
• Union Wages and Hours
• Directory of labor organizations: Africa
• Employment and wages, annual average
• Employment in metalworking industries by size of firm
• Estimates of employment, hours and earnings in nonagricultural establishments ...
• Labor Law and Practice in the Empire of Ethiopia
• Occupational Outlook Handbook, 1976-77 Edition
• Pennsylvania occupational trends and outlook for total civilian employment, 1980 and projected 1990