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Dziennik Łódzki 1884 - 1892 : studium nad powstawaniem polskiej opinii publicznej w wielonarodowym mieście fabrycznym
Gostkowski, Zygmunt, (1960)
The march of journalism : The story of the British press from 1622 to the present day
Herd, Harold, (1973)
American newspapers, 1821 - 1936 ; a union list of files available in the United States and Canada
Gerould, Winifred Gregory, (1967)
Der Terror gegen die Deutschen in den Vereinigten Staaten 1917 - 1918
Wittke, Carl Frederick, (1942)
German-Americans and the World War : (with special emphasis on Ohio's German-Language Press)
Wittke, Carl Frederick, (1936)
Fissures in the melting pot
Wittke, Carl, (1968)