APA (7th ed.) Citation

Williams, H. L., & Williams, O. K. (1953). New rooms for old. Harper.

Chicago Style (17th ed.) Citation

Williams, Henry Lionel, and Ottalie K. Williams. New Rooms for Old. New York: Harper, 1953.

MLA (9th ed.) Citation

Williams, Henry Lionel, and Ottalie K. Williams. New Rooms for Old. Harper, 1953.