APA استشهاد

Baumgart, W. (1976). A Catalogue Works on History of Germany. Verlag Ullstein.

استشهاد بنمط شيكاغو

Baumgart, Winfried. A Catalogue Works on History of Germany. Frankfurt: Verlag Ullstein, 1976.

MLA استشهاد

Baumgart, Winfried. A Catalogue Works on History of Germany. Verlag Ullstein, 1976.