Cita APA (7a ed.)

Klein, M. W. (1996). Gangs in the United States and Europe. European journal on criminal policy and research, 4(2), 63-80.

Cita Chicago Style (17a ed.)

Klein, Malcolm W. "Gangs in the United States and Europe." European Journal on Criminal Policy and Research 4, no. 2 (1996): 63-80.

Cita MLA (8a ed.)

Klein, Malcolm W. "Gangs in the United States and Europe." European Journal on Criminal Policy and Research, vol. 4, no. 2, 1996, pp. 63-80.