Cita APA (7a ed.)

Witte, A. D., & Witt, R. (2001). What we spend and what we get: Public and private provision of crime prevention and criminal justice. National Bureau of Economic Research.

Cita Chicago Style (17a ed.)

Witte, Ann Dryden, y Robert Witt. What We Spend and What We Get: Public and Private Provision of Crime Prevention and Criminal Justice. Cambridge, MA: National Bureau of Economic Research, 2001.

Cita MLA (9a ed.)

Witte, Ann Dryden, y Robert Witt. What We Spend and What We Get: Public and Private Provision of Crime Prevention and Criminal Justice. National Bureau of Economic Research, 2001.