APA (7th ed.) Citation

Wright, L. (1997). Twins: And what they tell us about who we are. J. Wiley.

Chicago Style (17th ed.) Citation

Wright, Lawrence. Twins: And What They Tell Us About Who We Are. New York: J. Wiley, 1997.

MLA (9th ed.) Citation

Wright, Lawrence. Twins: And What They Tell Us About Who We Are. J. Wiley, 1997.