Tyler, Varro E. <br/><br/>
Pharmacognosy / 
Varro E. Tyler, Lynn R. Brady and James E. Robbers. 
 - 9th ed. 
 - Philadelphia :  Lee & Febiger,  c1988. 
 - viii, 519 pages :  illustrations ;  23 cm. 
<br/><br/>Includes bibliographies and index. 
<br/><br/><label>ISBN: </label>0812110714 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Pharmacognosy.<br/>Pharmacognosy.
<br/><br/><label>Dewey Class. No.: </label>615.32 TYL