APA (7th ed.) Citation

Shaffer, J. W., Kinlock, T. W., & Nurco, D. N. (1984). A new classification of narcotic addicts based on type and extent of criminal activity. Comprehensive psychiatry, 25(3), 315-328. doi:10.1016/0010-440X(84)90064-6

Chicago Style (17th ed.) Citation

Shaffer, John W., Timothy W. Kinlock, and David N. Nurco. "A New Classification of Narcotic Addicts Based on Type and Extent of Criminal Activity." Comprehensive Psychiatry 25, no. 3 (1984): 315-328. https://doi.org/10.1016/0010-440X(84)90064-6.

MLA (9th ed.) Citation

Shaffer, John W., et al. "A New Classification of Narcotic Addicts Based on Type and Extent of Criminal Activity." Comprehensive Psychiatry, vol. 25, no. 3, 1984, pp. 315-328, https://doi.org/10.1016/0010-440X(84)90064-6.