APA استشهاد

Gyorgy, A. (1944). Geopolitics: The new German science. Univ Press.

استشهاد بنمط شيكاغو

Gyorgy, Andrew. Geopolitics: The New German Science. California: Univ Press, 1944.

MLA استشهاد

Gyorgy, Andrew. Geopolitics: The New German Science. Univ Press, 1944.