Wallis, T. E. <br/><br/>
Textbook of Pharmacognosy / 
T. E. Wallis. 
 - 5th ed 
 - New Delhi :  CBS publishers and distributors Pvt. Ltd.,  2002 
 - xi,651 p.  : tables, ill. figs, picture. ;  22 cm 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Fossil Organisms<br/>Pharmacogsnosy
<br/><br/><label>Dewey Class. No.: </label>615.321  / WAT