APA (7th ed.) Citation

Asbridge, M., Duff, C., Marsh, D., & Erickson, P. (2014). Problems with the identification of 'problematic' cannabis use: Examining the issues of frequency, quantity, and drug use environment.

Chicago Style (17th ed.) Citation

Asbridge, M., Cameron Duff, D. Marsh, and P. Erickson. Problems with the Identification of 'Problematic' Cannabis Use: Examining the Issues of Frequency, Quantity, and Drug Use Environment. 2014.

MLA (9th ed.) Citation

Asbridge, M., et al. Problems with the Identification of 'Problematic' Cannabis Use: Examining the Issues of Frequency, Quantity, and Drug Use Environment. 2014.