APA (7th ed.) Citation

Van Cleve, T. C. (1972). The Emperor Frederick II of Hohenstaufen, immutator mundi. Clarendon Press.

Chicago Style (17th ed.) Citation

Van Cleve, Thomas Curtis. The Emperor Frederick II of Hohenstaufen, Immutator Mundi. Oxford: Clarendon Press, 1972.

MLA (9th ed.) Citation

Van Cleve, Thomas Curtis. The Emperor Frederick II of Hohenstaufen, Immutator Mundi. Clarendon Press, 1972.

Warning: These citations may not always be 100% accurate.