Cita APA (7a ed.)

Lederman, D., & Loayza, N. (1999). What causes crime and violence? World Bank.

Cita Chicago Style (17a ed.)

Lederman, Daniel, y Norman Loayza. What Causes Crime and Violence? World Bank, 1999.

Cita MLA (9a ed.)

Lederman, Daniel, y Norman Loayza. What Causes Crime and Violence? World Bank, 1999.