APA (7th ed.) Citation

Williams, T. A. (1979). Mental health in the 21st century. Lexington Books.

Chicago Style (17th ed.) Citation

Williams, Thomas Arthur. Mental Health in the 21st Century. Lexington, Mass. [u.a.]: Lexington Books, 1979.

MLA (9th ed.) Citation

Williams, Thomas Arthur. Mental Health in the 21st Century. Lexington Books, 1979.