APA (7th ed.) Citation

Farrell, M., Griffiths, P., & Strang, J. (1999). Finding the balance for different policy options. Current and future drug policy studies in Europe, 89-108.

Chicago Style (17th ed.) Citation

Farrell, Michael, Paul Griffiths, and John Strang. "Finding the Balance for Different Policy Options." Current and Future Drug Policy Studies in Europe 1999: 89-108.

MLA (9th ed.) Citation

Farrell, Michael, et al. "Finding the Balance for Different Policy Options." Current and Future Drug Policy Studies in Europe, 1999, pp. 89-108.