Nolan, M. (1981). Social democracy and society: Working-class radicalism in Düsseldorf, 1890-1920. Cambridge: University Press.
Chicago-referens (17:e uppl.)Nolan, Mary. Social Democracy and Society: Working-class Radicalism in Düsseldorf, 1890-1920. Cambridge: University Press, 1981.
MLA-referens (8:e uppl.)Nolan, Mary. Social Democracy and Society: Working-class Radicalism in Düsseldorf, 1890-1920. Cambridge: University Press, 1981.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.