Cita APA (7a ed.)

Hellman, D. A., & Naroff, J. L. (1980). The urban public sector and urban crime: A simultaneous approach. National Institute of Justice.

Cita Chicago Style (17a ed.)

Hellman, Daryl A., y Joel L. Naroff. The Urban Public Sector and Urban Crime: A Simultaneous Approach. Washington, D.C: National Institute of Justice, 1980.

Cita MLA (8a ed.)

Hellman, Daryl A., y Joel L. Naroff. The Urban Public Sector and Urban Crime: A Simultaneous Approach. National Institute of Justice, 1980.