Cita APA (7a ed.)

Shaffer, J. W., Kinlock, T. W., & Nurco, D. N. New Classification of Narcotic Addicts Based on Type and Extent of Criminal Activity. United States Department of Justice, National Institute of Justice.

Cita Chicago Style (17a ed.)

Shaffer, John W., Timothy W. Kinlock, y David N. Nurco. New Classification of Narcotic Addicts Based on Type and Extent of Criminal Activity. [Erscheinungsort nicht ermittelbar]: United States Department of Justice, National Institute of Justice.

Cita MLA (9a ed.)

Shaffer, John W., et al. New Classification of Narcotic Addicts Based on Type and Extent of Criminal Activity. United States Department of Justice, National Institute of Justice.