“Marijuana: The Greatest Cause of Illegal Drug Abuse,” Office of National Drug Control Policy (ONDCP), July 2008

The Marijuana Sourcebook is a compilation of data relating to marijuana, including use patterns and trends, health effects, criminal justice aspects, supply sources, and information on so-called “medical marijuana.” 

This publication can be found at www.whitehousepolicy.gov/news/press08/072908.html.