Παραπομπή σε μορφή APA (7η εκδ.)

RICHARDS, D. (1950). An illustrated history of modern Europe; 1789-1945: Denis Richards (5th ed.). Longman.

Παραπομπή σε μορφή Chicago (17η εκδ.)

RICHARDS, Denis. An Illustrated History of Modern Europe; 1789-1945: Denis Richards. 5th ed. London: Longman, 1950.

Παραπομπή σε μορφή MLA (9th εκδ.)

RICHARDS, Denis. An Illustrated History of Modern Europe; 1789-1945: Denis Richards. 5th ed. Longman, 1950.