Παραπομπή APA

Bell, P. M. H. (1986). The Origins of the second world war in Europe.

Παραπομπή Chicago Style

Bell, P M H. The Origins of the Second World War in Europe. London, Longman, 1986.

Παραπομπή MLA

Bell, P M H. The Origins of the Second World War in Europe. 1986.