1
Archief 'Belgische afdeling van de Vierde Internationale'
Eerste nr.: 24 jan 1977
Date 1977-1985
“...Socialist Workers Party of United States (SWP)...”
periodiek
2
Bibliotheek François Vercammen
Date 1942
“...Socialist Workers Party of United States (SWP)...”
brochure
3
Bibliotheek François Vercammen
Date 1945
“...Socialist Workers Party of United States (SWP)...”
brochure