A Textbook of Higher Secondary Biology  : Class XI 
by Keshari, Arvind K. / Ghimire, Khaga Raj (et al.) 
 -  Vidyarthi Pustak Bhandar 
<br/><br/><label>ISBN: </label>9789994613731 
<br/><br/><label>Dewey Class. No.: </label>570