APA-Zitierstil (7. Ausg.)

Grey, I. (1973). Ivan the Third and the unification of Russia. Penguin Books.

Chicago-Zitierstil (17. Ausg.)

Grey, Ian. Ivan the Third and the Unification of Russia. Harmondsworth, Mx: Penguin Books, 1973.

MLA-Zitierstil (9. Ausg.)

Grey, Ian. Ivan the Third and the Unification of Russia. Penguin Books, 1973.