学科
- American Federation of Teachers[删除]56
- United University Professions (Association : N.Y.)55
- Labor union members48
- Labor unions46
- Labor union meetings31
- Banquets16
- Los Angeles (Calif.)14
- Shanker, Albert13
- Speeches, addresses, etc.12
- Photographers10
- New York State United Teachers9
- RAS Photography9
- Schroeder, Alan B.8
- Drescher, Nuala McGann7
- DeLucia, Lawrence5
- Photography, Close-up5
- The Voice4
- Portraits3
- AFL-CIO2
- Clarke, Patricia2
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