Cita APA (7a ed.)

Pennell, S., & Curtis, C. (1993). Crack abatement: Comparison of drug control strategies; submitted to the Natinal Institute of Justice (Rev.). San Diego Assoc. of Government.

Cita Chicago Style (17a ed.)

Pennell, Susan, y Christine Curtis. Crack Abatement: Comparison of Drug Control Strategies; Submitted to the Natinal Institute of Justice. Rev. San Diego, Calif: San Diego Assoc. of Government, 1993.

Cita MLA (8a ed.)

Pennell, Susan, y Christine Curtis. Crack Abatement: Comparison of Drug Control Strategies; Submitted to the Natinal Institute of Justice. Rev. San Diego Assoc. of Government, 1993.