APA (7th ed.) Citation

Harper, L. (2014). Illegal drugs in the US: Markets and trends for marijuana, meth, heroin and cocaine. Nova Publishers.

Chicago Style (17th ed.) Citation

Harper, Lesley. Illegal Drugs in the US: Markets and Trends for Marijuana, Meth, Heroin and Cocaine. New York: Nova Publishers, 2014.

MLA (8th ed.) Citation

Harper, Lesley. Illegal Drugs in the US: Markets and Trends for Marijuana, Meth, Heroin and Cocaine. Nova Publishers, 2014.

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