Cita APA (7a ed.)

Spergel, I. A., & Chance, R. L. (1990). Community and institutional responses to the youth gang problem: Case studies based on field visits and other materials. National Youth Gang Information Center.

Cita Chicago Style (17a ed.)

Spergel, Irving A., y Ron L. Chance. Community and Institutional Responses to the Youth Gang Problem: Case Studies Based on Field Visits and Other Materials. Arlington, Va: National Youth Gang Information Center, 1990.

Cita MLA (9a ed.)

Spergel, Irving A., y Ron L. Chance. Community and Institutional Responses to the Youth Gang Problem: Case Studies Based on Field Visits and Other Materials. National Youth Gang Information Center, 1990.