Citazione Stile APA (7a Edizione)

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

Citazione stile Chigago Style (17a edizione)

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

Citatione MLA (9a ed.)

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