Morral, A. R., Paddock, S. M., & McCaffrey, D. F. (2002). Reassessing the marijuana gateway effect. Addiction, 97(12), 1493-1504. doi:10.1046/j.1360-0443.2002.00280.x
Chicago Style (17th ed.) CitationMorral, Andrew R., Susan M. Paddock, and Daniel F. McCaffrey. "Reassessing the Marijuana Gateway Effect." Addiction 97, no. 12 (2002): 1493-1504. https://doi.org/10.1046/j.1360-0443.2002.00280.x.
MLA (9th ed.) CitationMorral, Andrew R., et al. "Reassessing the Marijuana Gateway Effect." Addiction, vol. 97, no. 12, 2002, pp. 1493-1504, https://doi.org/10.1046/j.1360-0443.2002.00280.x.
Warning: These citations may not always be 100% accurate.