APA (7th ed.) Citation

Cressey, D. (2015). The cannabis experiment. Nature Publishing Group (NPG).

Chicago Style (17th ed.) Citation

Cressey, D. The Cannabis Experiment. Nature Publishing Group (NPG), 2015.

MLA (9th ed.) Citation

Cressey, D. The Cannabis Experiment. Nature Publishing Group (NPG), 2015.

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