Nonproprietary names for pharmaceutical substances :  twentieth report of the WHO Expert Committee. 

 - Geneva :  World Health Organization,  1975. 
 - 32 p. 
 - �echnical report series / World Health Organization ;  581. .
 - Technical report series (World Health organization) ;  581. .
<br/><br/><label>ISBN: </label>9241205814 
<br/><br/><label>LCCN: </label>88991055 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Pharmacognosy--Names--Classification.<br/>Phamrmacology--Names--Classification.