Παραπομπή APA

Pflanze, O. (1968). unification of Germany. Holt, Rinehart and Winston, Inc.

Παραπομπή Chicago Style

Pflanze, Otto. Unification of Germany. New York: Holt, Rinehart and Winston, Inc, 1968.

Παραπομπή MLA

Pflanze, Otto. Unification of Germany. Holt, Rinehart and Winston, Inc, 1968.