APA aipamena

Ward-Perkins, J. B. (1981). Roman imperial architecture. Penguin Books.

Chicago Style aipamena

Ward-Perkins, John Bryan. Roman Imperial Architecture. London: Penguin Books, 1981.

MLA aipamena

Ward-Perkins, John Bryan. Roman Imperial Architecture. Penguin Books, 1981.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.