Piehl, M. (1982). Breaking bread: The Catholic worker and the origin of Catholic radicalism in America. Temple University Press.
Chicago-referens (17:e uppl.)Piehl, Mel. Breaking Bread: The Catholic Worker and the Origin of Catholic Radicalism in America. Philadelphia: Temple University Press, 1982.
MLA-referens (8:e uppl.)Piehl, Mel. Breaking Bread: The Catholic Worker and the Origin of Catholic Radicalism in America. Temple University Press, 1982.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.