APA

United States, . (2014). What you should know about marijuana concentrates: also known as THC extractions. [Washington, D.C.]: United States Department of Justice, Drug Enforcement Administration, Demand Reduction Section.

Chicago

United States, . 2014. What you should know about marijuana concentrates: also known as THC extractions. [Washington, D.C.]: United States Department of Justice, Drug Enforcement Administration, Demand Reduction Section.

Harvard

United States, . (2014). What you should know about marijuana concentrates: also known as THC extractions. [Washington, D.C.]: United States Department of Justice, Drug Enforcement Administration, Demand Reduction Section.

MLA

United States, . What you should know about marijuana concentrates: also known as THC extractions. [Washington, D.C.]: United States Department of Justice, Drug Enforcement Administration, Demand Reduction Section. 2014.