APA (7th ed.) Citation

King, L. A., Carpentier, C., & Griffiths, P. (2004). An overview of cannabis potency in Europe. Office for Official Publications of the European Communities.

Chicago Style (17th ed.) Citation

King, Leslie A., Chloe Carpentier, and Paul Griffiths. An Overview of Cannabis Potency in Europe. Luxembourg: Office for Official Publications of the European Communities, 2004.

MLA (8th ed.) Citation

King, Leslie A., et al. An Overview of Cannabis Potency in Europe. Office for Official Publications of the European Communities, 2004.

Warning: These citations may not always be 100% accurate.