Cita APA (7a ed.)

Barbour, S. (2006). Gangs. Greenhaven Press.

Cita Chicago Style (17a ed.)

Barbour, Scott. Gangs. Farmington Hills, Mich. [u.a.]: Greenhaven Press, 2006.

Cita MLA (8a ed.)

Barbour, Scott. Gangs. Greenhaven Press, 2006.