Styl cytowania APA

Bullock, A. (1974). Hitler: A study in tyranny. Penguin Books.

Styl cytowania Chicago

Bullock, Alan. Hitler: A Study in Tyranny. Harmondsworth ; Middlesex: Penguin Books, 1974.

Styl cytowania MLA

Bullock, Alan. Hitler: A Study in Tyranny. Penguin Books, 1974.