Cita APA (7a ed.)

May, T., & Hough, M. (2001). Illegal dealings: The impact of low-level police enforcement on drug markets. European journal on criminal policy and research, 9(2), 137-162.

Cita Chicago Style (17a ed.)

May, Tiggey, y Michael Hough. "Illegal Dealings: The Impact of Low-level Police Enforcement on Drug Markets." European Journal on Criminal Policy and Research 9, no. 2 (2001): 137-162.

Cita MLA (9a ed.)

May, Tiggey, y Michael Hough. "Illegal Dealings: The Impact of Low-level Police Enforcement on Drug Markets." European Journal on Criminal Policy and Research, vol. 9, no. 2, 2001, pp. 137-162.