APA   Click to copy
Farrelly, M. C., Bray, J. W., Zarkin, G. A., & Wendling, B. W. (2001). The joint demand for cigarettes and marijuana: evidence from the National Household Surveys on Drug Abuse. Journal of Health Economics, 20, 51–68.

Chicago/Turabian   Click to copy
Farrelly, Matthew C, Jeremy W Bray, Gary A Zarkin, and Brett W Wendling. “The Joint Demand for Cigarettes and Marijuana: Evidence from the National Household Surveys on Drug Abuse.” Journal of health economics 20 (2001): 51–68.

MLA   Click to copy
Farrelly, Matthew C., et al. “The Joint Demand for Cigarettes and Marijuana: Evidence from the National Household Surveys on Drug Abuse.” Journal of Health Economics, vol. 20, Elsevier, 2001, pp. 51–68.

@article{farrelly2001a,
  title = {The joint demand for cigarettes and marijuana: evidence from the National Household Surveys on Drug Abuse},
  year = {2001},
  journal = {Journal of health economics},
  pages = {51--68},
  publisher = {Elsevier},
  volume = {20},
  author = {Farrelly, Matthew C and Bray, Jeremy W and Zarkin, Gary A and Wendling, Brett W}
}