Arbitration, Industrial 2 Labor relations--Pennsylvania--20th century 2 Centennial Exhibition (1876 : Philadelphia, Pa.) 1 Cloth printing--Philadelphia--19th Century 1 Coal mines and mining--Pennsylvania 1 Collective labor agreements 1 Diaries--19th century 1 more ... Faculty 1 Government attorneys 1 Industrial relations 1 Judicial proceedings 1 Kohler Company Strike, Kohler, Wis., 1954-1960 1 Labor Relations--Textile Industry--Philadelphia--19th century 1 Labor and laboring classes 1 Labor disputes--Pennsylvania--Hazelton 1 Labor laws and legislation 1 Labor movement--Pennsylvania--Philadelphia 1 Labor relations--Pennsylvania--19th century 1 Labor relations--Philadelphia (Pa.)--19th century 1 Labor unions 1 Labor--20th Century 1 New Deal, 1933-1939 1 Politics and government 1 Real Estate--Pennyslvania--20th century 1 Ribbonmaking--Philadelphia--19th century 1 School lunchrooms, cafeterias, etc.--Management 1 School lunchrooms, cafeterias, etc.--Management--Contracting out 1 School lunchrooms, cafeterias, etc.--Management--Contracting out--United States 1 School lunchrooms, cafeterias, etc.--Pennsylvania--Philadelphia--Management 1 School lunchrooms, cafeterias, etc.--United States--Management 1 Social life and customs--Pennsylvania--Philadelphia (Pa.)--19th century 1 Textile Industry--Philadelphia--19th century 1 Unfair labor practices 1 less ...