Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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