APA (7th ed.) Citation

Wright, F. L., & Pfeiffer, B. B. (1987). Letters to architects. Architectural Press.

Chicago Style (17th ed.) Citation

Wright, Frank Lloyd, and Bruce Brooks Pfeiffer. Letters to Architects. London: Architectural Press, 1987.

MLA (9th ed.) Citation

Wright, Frank Lloyd, and Bruce Brooks Pfeiffer. Letters to Architects. Architectural Press, 1987.