Trease and evans pharmacognosy / 
[edited by] William Charles Evans. 
 - 13th  ed. 
 - London :  Elsevier,  1989. 
 - vii, 832p. 
<br/><br/><label>ISBN: </label>0702013579: 
<br/><br/><label>Subjects--Topical Terms: </label><br/>PPharmacognosy.