Dhami, P S, <br/><br/>
A textbook biology XI, Vol-II  Textual Documents 
by P s Dhami, G Chopra, H N Srivastava 
 - 31st ed. 
 - Punjab  Pradeep Publications  2016. 
 - Vol-II,942pg:  27cm. 
<br/><br/><label>ISBN: </label>9789386008015 
<br/><br/><label>Subjects--Index Terms: </label>Biology G-Biology 
<br/><br/><label>Dewey Class. No.: </label>574