APA (7th ed.) Citation

Williams, R. J. (1953). Free and unequal: The biological basis of individual liberty. University of Texas Press.

Chicago Style (17th ed.) Citation

Williams, Roger J. Free and Unequal: The Biological Basis of Individual Liberty. Austin: University of Texas Press, 1953.

MLA (9th ed.) Citation

Williams, Roger J. Free and Unequal: The Biological Basis of Individual Liberty. University of Texas Press, 1953.