Cita APA (7a ed.)

Koval, J. P., & Polk, K. (1967). Problem youth in a small city. Juvenile gangs in context, 123-138.

Cita Chicago Style (17a ed.)

Koval, J. P., y K. Polk. "Problem Youth in a Small City." Juvenile Gangs in Context 1967: 123-138.

Cita MLA (8a ed.)

Koval, J. P., y K. Polk. "Problem Youth in a Small City." Juvenile Gangs in Context, 1967, pp. 123-138.