U.S.Pharmacopoeia. <br/><br/>
United State Pharmacopoeia 2009. 32NF 27V, vol. I   REFERENCE 

 -  U.S.Pharmacopoeia.  2009 
 - 1379 
<br/><br/> REFERENCE 
<br/><br/><label>Dewey Class. No.: </label>615/USP