Styl cytowania APA

Collier, D. S. (1963). Berlin and the future of Eastern Europe. Regnery.

Styl cytowania Chicago

Collier, David S. Berlin and the Future of Eastern Europe. Chicago: Regnery, 1963.

Styl cytowania MLA

Collier, David S. Berlin and the Future of Eastern Europe. Regnery, 1963.