WHO Expert Committee on Drug Dependence :  twenty-seventh report. 

 - Geneva :  WHO,  1991. 
 - iv, 17 p. 
 - WHO technical report series ; 808 .
<br/><br/><label>ISBN: </label>9241208082 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Drug abuse.<br/>Drugs--Developing countries.