Cita APA (7a ed.)

Jepsen, J., & Laursen, L. (1998). Recent changes in Danish law on drugs and drug offences. European addiction research, 4(3), 113-127.

Cita Chicago Style (17a ed.)

Jepsen, J., y L. Laursen. "Recent Changes in Danish Law on Drugs and Drug Offences." European Addiction Research 4, no. 3 (1998): 113-127.

Cita MLA (8a ed.)

Jepsen, J., y L. Laursen. "Recent Changes in Danish Law on Drugs and Drug Offences." European Addiction Research, vol. 4, no. 3, 1998, pp. 113-127.