World Health Organization <br/><br/>
The international pharmacopoeia vol. 1  General methods of analysis 

 - 3rd ed 
 - World Health Organization, Geneva  1979 
 - 223p 
<br/><br/><label>ISBN: </label>92 4 154150 4 
<br/><br/><label>Dewey Class. No.: </label>615.11 W.H.O.