APA (7th ed.) Citation

Porter, A. K. (1969). Medieval architecture its origins and development. Hacker Art Books.

Chicago Style (17th ed.) Citation

Porter, Arthur Kingsley. Medieval Architecture Its Origins and Development. Nueva York: Hacker Art Books, 1969.

MLA (9th ed.) Citation

Porter, Arthur Kingsley. Medieval Architecture Its Origins and Development. Hacker Art Books, 1969.