. . "anno 1700-1799" . . "Noirs américains Travail." . . . . . . "Organized labor and the Black worker : 1619-1973" . . . "Organized labor and the black worker, 1619-1973" . . . . . . . . "History" . "History"@en . . . "Organized labor and the black worker,1619-1973" . . . . . . . "Organized labor and the black worker 1619 - 1973" . . . . "Organized labor and the Black worker, 1619-1973"@en . "Organized labor and the Black worker, 1619-1973" . . . . . . . "Organized labor and the black worker : 1619-1973" . "Organized Labor and the black worker, 1619-1973" . . . . "Organized Labor and the Black Worker 1619-1973" . "Organized labor and the black worker 1619-1973" . . . . . . . . . . . . . . . "Organized labor and the black worker (1619-1973)" . . . . . . . . "Gewerkschaft." . . "Arbeidsconflicten." . . "Schwarze." . . "anno 1600-1699" . . "Negroes Employment History." . . "Schwarze." . . "Sociologie van de minderheden." . . "Geschichte 1619-1973." . . "anno 1800-1999" . . "Noirs américains Droits." . . "USA." . . "Noirs américains dans les syndicats." . . "Trade-unions United States Negro membership History." . . "Noirs américains Travail États-Unis Histoire." . . "Negro-Labor Alliance Council" . . "Sindacati - Partecipazione dei negri - Stati Uniti d'America." . . "Neri - Occupazione - Stati Uniti d'America." . . "Syndiqués noirs américains Histoire." . . "Verenigde Staten van Amerika." . .