What you should know about marijuana concentrates :  also known as THC extractions. 

 - 1 online resource ([2] pages) :  color illustrations 
<br/><br/> "December 2014."  CRDP Project record. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Marijuana--Study and teaching--United States.<br/>Tetrahydrocannabinol--Study and teaching--United States.<br/>Drug abuse--Study and teaching--United States.<br/>Teenagers--Drug use--Prevention.--United States<br/>Drug abuse--Prevention.--United States
<br/><br/><label>GPO Item No.: </label>0967 (online) 
<br/><br/><label>Gov. Doc. Class. No.: </label>J 24.2:M 33/5