Smart, R.G. <br/><br/>
A methodology for student drug-use surveys. 

 - 55 p. 
 - WHO offset publication ; no. 50 .
<br/><br/><label>ISBN: </label>9241700505 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Substance abuse--In adolescence<br/>Substance-related disorders--In adolescence<br/>Data collection methods