(1985). The Press of Labor Migrants in Europe and North Amerika 1880s to 1930s. Bremen: Labor Newspaper Preservation Projekt.
Chicago-referens (17:e uppl.)The Press of Labor Migrants in Europe and North Amerika 1880s to 1930s. Bremen: Labor Newspaper Preservation Projekt, 1985.
MLA-referens (8:e uppl.)The Press of Labor Migrants in Europe and North Amerika 1880s to 1930s. Bremen: Labor Newspaper Preservation Projekt, 1985.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.