APA (7th ed.) Citation

Segal, N. L. (1999). Entwined lives: Twins and what they tell us about human behavior. Dutton.

Chicago Style (17th ed.) Citation

Segal, Nancy L. Entwined Lives: Twins and What They Tell Us About Human Behavior. New York [u.a.]: Dutton, 1999.

MLA (8th ed.) Citation

Segal, Nancy L. Entwined Lives: Twins and What They Tell Us About Human Behavior. Dutton, 1999.