Cita APA (7a ed.)

Klein, M. W. (1992). Twenty-five years of youth gangs and violence. Univ.of Southern Calif.

Cita Chicago Style (17a ed.)

Klein, Malcolm W. Twenty-five Years of Youth Gangs and Violence. [S.l.]: Univ.of Southern Calif, 1992.

Cita MLA (8a ed.)

Klein, Malcolm W. Twenty-five Years of Youth Gangs and Violence. Univ.of Southern Calif, 1992.