APA (7th ed.) Citation

De Syrmia, E. (1978). At the head of nations: The rise of the papal and princely House of Odescalchi. Cyclopedia Pub. Co..

Chicago Style (17th ed.) Citation

De Syrmia, Edmond. At the Head of Nations: The Rise of the Papal and Princely House of Odescalchi. Pleasant Valley, N.Y.: Cyclopedia Pub. Co., 1978.

MLA (9th ed.) Citation

De Syrmia, Edmond. At the Head of Nations: The Rise of the Papal and Princely House of Odescalchi. Cyclopedia Pub. Co., 1978.