Hoerder, D., & Harzig, C. (1987). The immigrant labor press in North America 1840s-1970s: An annotated bibliography. Volume 3 : Migrants from Southern and Western Europe. New York [etc.]: Greenwood.
Chicago-referens (17:e uppl.)Hoerder, Dirk, och Christiane Harzig. The Immigrant Labor Press in North America 1840s-1970s: An Annotated Bibliography. Volume 3 : Migrants from Southern and Western Europe. New York [etc.]: Greenwood, 1987.
MLA-referens (8:e uppl.)Hoerder, Dirk, och Christiane Harzig. The Immigrant Labor Press in North America 1840s-1970s: An Annotated Bibliography. Volume 3 : Migrants from Southern and Western Europe. New York [etc.]: Greenwood, 1987.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.