Zimmermann, W. (1878). A popular history of Germany: From the earliest period to the present day. H.J. Johnson.
Lua i Stíl Chicago (17ú heag.)Zimmermann, Wilhelm. A Popular History of Germany: From the Earliest Period to the Present Day. New York: H.J. Johnson, 1878.
Lua MLA (8ú heag.)Zimmermann, Wilhelm. A Popular History of Germany: From the Earliest Period to the Present Day. H.J. Johnson, 1878.
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