APA (7th ed.) Citation

Robinson, J. B. (2003). The drug free zones, the police, locations, and trends of drug sales in Portland, Oregon, 1990 - 1998.

Chicago Style (17th ed.) Citation

Robinson, Jennifer Barbara. The Drug Free Zones, the Police, Locations, and Trends of Drug Sales in Portland, Oregon, 1990 - 1998. 2003.

MLA (8th ed.) Citation

Robinson, Jennifer Barbara. The Drug Free Zones, the Police, Locations, and Trends of Drug Sales in Portland, Oregon, 1990 - 1998. 2003.

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