Plant Systematics  an integrated approach 
Gurcharan Singh 
 - Boca Raton  CRC Press  c2019 
 - xiii, 549p. 
<br/><br/><label>ISBN: </label>978-0-367-42059-8  Rs.1695.00 
<br/><br/><label>Dewey Class. No.: </label>582  / S617 ed.4