Drugs of natural origin  a textbook of pharmacognosy 
Gunnar Samuelsson. 
 - 4th rev. ed. 
 - Stockholm  Swedish Pharmaceutical Society  1999 
 - 551p., 25cm. 
<br/><br/><label>ISBN: </label>918627481-3. 
<br/><br/><label>Dewey Class. No.: </label>615.321  / S13D