APA (7th ed.) Citation

Richards, J. M. (1970). An introduction to modern architecture. Penguin Books.

Chicago Style (17th ed.) Citation

Richards, J. M. An Introduction to Modern Architecture. Harmondsworth, Middelsex ; Baltimore, Md.: Penguin Books, 1970.

MLA (9th ed.) Citation

Richards, J. M. An Introduction to Modern Architecture. Penguin Books, 1970.