The use of essential drugs 

 - Geneva:  World Health Organization;  1997 
 - vi, 74 p. 
 - WHO technical report series  867 .
<br/><br/> Includes reference. 
<br/><br/><label>ISBN: </label>9241208678 
<br/><br/><label>Dewey Class. No.: </label>615.1  / WOR