APA (7th ed.) Citation

Roleff, T. L. (2002). What encourages gang behavior? Greenhaven Press.

Chicago Style (17th ed.) Citation

Roleff, Tamara L. What Encourages Gang Behavior? San Diego, Calif: Greenhaven Press, 2002.

MLA (8th ed.) Citation

Roleff, Tamara L. What Encourages Gang Behavior? Greenhaven Press, 2002.