Robbers, James E., et al. <br/><br/>
Pharmacognosy and pharmacobiotechnology / 
James E. Robbers, Marilyn K. Speedie and Varro E. Tyler 
 - Baltimore,   Williams & Wilkins,   1996 
 - ix,   337 p. ;   26 cm.  
<br/><br/> Includes bibliographical references and index. 
<br/><br/><label>Nat. Bib. No.: </label>
<br/><br/><label>Subjects--Topical Terms: </label><br/>1. Pharmacognosy<br/>2. Drugs--Biotechnology