Cita APA (7a ed.)

Williams, K. R., Guerra, N. G., & Elliott, D. S. (1997). Human development and violence prevention: A focus on youth. Center for the Study and Prevention of Violence, Institute of Behavioral Science, University of Colorado, Boulder.

Cita Chicago Style (17a ed.)

Williams, Kirk R., Nancy G. Guerra, y Delbert S. Elliott. Human Development and Violence Prevention: A Focus on Youth. Boulder, Colo: Center for the Study and Prevention of Violence, Institute of Behavioral Science, University of Colorado, Boulder, 1997.

Cita MLA (9a ed.)

Williams, Kirk R., et al. Human Development and Violence Prevention: A Focus on Youth. Center for the Study and Prevention of Violence, Institute of Behavioral Science, University of Colorado, Boulder, 1997.