Παραπομπή σε μορφή APA (7η εκδ.)

Zimmermann, W. (1878). A popular history of Germany: From the earliest period to the present day. H.J. Johnson.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Zimmermann, Wilhelm. A Popular History of Germany: From the Earliest Period to the Present Day. New York: H.J. Johnson, 1878.

Παραπομπή σε μορφή MLA (8th εκδ.)

Zimmermann, Wilhelm. A Popular History of Germany: From the Earliest Period to the Present Day. H.J. Johnson, 1878.