Cita APA (7a ed.)

Cunningham, W. C., Strauchs, J. J., & VanMeter, C. W. (1991). Private security: Patterns and trends. U.S. Dep. of Justice, Office of Justice Programs, National Inst. of Justice.

Cita Chicago Style (17a ed.)

Cunningham, William C., John J. Strauchs, y Clifford W. VanMeter. Private Security: Patterns and Trends. Washington, DC: U.S. Dep. of Justice, Office of Justice Programs, National Inst. of Justice, 1991.

Cita MLA (8a ed.)

Cunningham, William C., et al. Private Security: Patterns and Trends. U.S. Dep. of Justice, Office of Justice Programs, National Inst. of Justice, 1991.