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| Indiana. Division of Labor. |
L123 |
| Indiana State Federation of Labor | L123 |
| Int Labor | L123 |
| Inter-American Conference of Ministers of Labor. | L123 |
| Intl Labor | L123 |
| Iowa Bureau of Labor | L123 |
| Iowa Bureau of Labor | L123 |
| Iowa. Bureau of Labor | L123 |
| Japan Ministry of Labor | L123 |
| Joyce Labor | L123 |
| Kansas State Federation of Labor | L123 |
| Kentucky. Department of Labor | L123 |
| Kentucky. Dept. of Labor. | L123 |
| Kentucky Dept. of Labor | L123 |
| Kimberly Labor | L123 |
| Knights of Labor. | L123 |
| Knights of Labor | L123 |
| Knights Of Labor | L123 |
| Kreativ Labor | L123 |
| Kriscell Largo Labor | L123 |
| Labor Law Group Conference on Labor and Employment Law (1984 Park City, Utah) | L123 |
| Labor Law Seminar (1983 Portland, Me.) | L123 |
| Livio Labor | L123 |
| Louisiana Bureau of Statistics of Labor | L123 |
| Louisiana. Department of Labor | L123 |
| Louisiana. Dept. of Labor. | L123 |
| Maine. Legislature. Commission to Study the Most Effective Method of Providing Retail Rate Reimbursement for Parts and Labor. | L123 |
| Maine. Legislature. Joint Select Committee on Labor. | L123 |
| Maine. Legislature. Joint Standing Committee on Labor. | L123 |
| Malbuch Labor | L123 |
| Labor-Management Conference on the Business Climate and Jobs in New York State (1975 Buffalo, NY) | L123 |
| Manuel Labor | L123 |
| Marcello Labor | 1890–1954 | L123 |
| Mark Labor | L123 |
| Labor Market & Employment Service Research Section, Occupational Information Unit | L123 |
| Maryland. Commission on Prison Labor | L123 |
| Massachusetts. Bureau of statistics of labor | L123 |
| Massachusetts Bureau of Statistics of Labor | L123 |
| Massachusetts. Bureau of Statistics of Labor. | L123 |
| Massachusetts. Bureau of Statistics of Labor | L123 |
| Massachusetts. Commission on Hours of Labor | L123 |
| Massachusetts Federation of Labor | L123 |
| Massachusetts. General Court. House of Representatives. Special Committee on Conditions Under Which Women and Children Labor | L123 |