Cite
The frequency of drugs among Danish drivers before and after the introduction of fixed concentration limits.
MLA
Steentoft, Anni, et al. “The Frequency of Drugs among Danish Drivers before and after the Introduction of Fixed Concentration Limits.” Traffic Injury Prevention, vol. 11, no. 4, Aug. 2010, pp. 329–33. EBSCOhost, https://doi.org/10.1080/15389581003792783.
APA
Steentoft, A., Simonsen, K. W., & Linnet, K. (2010). The frequency of drugs among Danish drivers before and after the introduction of fixed concentration limits. Traffic Injury Prevention, 11(4), 329–333. https://doi.org/10.1080/15389581003792783
Chicago
Steentoft, Anni, Kirsten Wiese Simonsen, and Kristian Linnet. 2010. “The Frequency of Drugs among Danish Drivers before and after the Introduction of Fixed Concentration Limits.” Traffic Injury Prevention 11 (4): 329–33. doi:10.1080/15389581003792783.