APA (7th ed.) Citation

Sommer, R. L. (1996). American architecture: An illustrated history. Crescent Books.

Chicago Style (17th ed.) Citation

Sommer, Robin Langley. American Architecture: An Illustrated History. New York: Crescent Books, 1996.

MLA (9th ed.) Citation

Sommer, Robin Langley. American Architecture: An Illustrated History. Crescent Books, 1996.