Heinrich Michael ; Barnes J; Gibbons S & Williamson EM <br/><br/>
Fundamentals of Pharmacognosy and Phytotherapy .-2nd edn .-978-07020-3388-9 

 - 2nd edn  
 -  Elsevier Churchill, Livingstone, Livingstone  2012 
<br/><br/><label>ISBN: </label>978-07020-3388-9 
<br/><br/><label>Dewey Class. No.: </label>LX3   P12/B27389