APA-viite (7. p.)

Ward-Perkins, J. B. (1981). Roman imperial architecture (2nd ed.). Penguin Books.

Chicago-viite (17. p.)

Ward-Perkins, John Bryan. Roman Imperial Architecture. 2nd ed. Harmondsworth, Middlesex, Eng: Penguin Books, 1981.

MLA-viite (9. p.)

Ward-Perkins, John Bryan. Roman Imperial Architecture. 2nd ed. Penguin Books, 1981.