Não informado. (1976). International Labor and Working-Class History. Cambridge University Press.
Chicago-referens (17:e uppl.)Não informado. International Labor and Working-Class History. New York: Cambridge University Press, 1976.
MLA-referens (8:e uppl.)Não informado. International Labor and Working-Class History. Cambridge University Press, 1976.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.