Merck index:   An encyclopedia of chemicals, drugs and biologicals  

 - 14th ed.  
 - USA:   Merck & Co, Inc.,   2006 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Biology 
<br/><br/><label>Subjects--Index Terms: </label>Chemical  
<br/><br/><label>Universal Decimal Class. No.: </label>R 615(038)  / P6