Παραπομπή APA

Wren, M. C. (1968). Course of Russian history. Macmillan.

Παραπομπή Chicago Style

Wren, Melvin C. Course of Russian History. London: Macmillan, 1968.

Παραπομπή MLA

Wren, Melvin C. Course of Russian History. Macmillan, 1968.