APA   Click to copy
Edwards, K. A., Vowles, K. E., & Witkiewitz, K. (2017). Co-use of alcohol and opioids. Current Addiction Reports, 4, 194–199.

Chicago/Turabian   Click to copy
Edwards, Karlyn A, Kevin E Vowles, and Katie Witkiewitz. “Co-Use of Alcohol and Opioids.” Current addiction reports 4 (2017): 194–199.

MLA   Click to copy
Edwards, Karlyn A., et al. “Co-Use of Alcohol and Opioids.” Current Addiction Reports, vol. 4, Springer International Publishing, 2017, pp. 194–99.

@article{edwards2017a,
  title = {Co-use of alcohol and opioids},
  year = {2017},
  journal = {Current addiction reports},
  pages = {194--199},
  publisher = {Springer International Publishing},
  volume = {4},
  author = {Edwards, Karlyn A and Vowles, Kevin E and Witkiewitz, Katie}
}