APA (7th ed.) Citation

Wright, F. L., & Kaufmann, E. (1955). An American architecture. Horizon Press.

Chicago Style (17th ed.) Citation

Wright, Frank Lloyd, and Edgar Kaufmann. An American Architecture. New York: Horizon Press, 1955.

MLA (9th ed.) Citation

Wright, Frank Lloyd, and Edgar Kaufmann. An American Architecture. Horizon Press, 1955.