Citazione Stile APA (7a Edizione)

Richards, J. M. (1940). An introduction to modern architecture. Penguin.

Citazione stile Chigago Style (17a edizione)

Richards, J. M. An Introduction to Modern Architecture. Harmondsworth: Penguin, 1940.

Citatione MLA (8a ed.)

Richards, J. M. An Introduction to Modern Architecture. Penguin, 1940.