VERMA, P.S <br/><br/>
Text Book of Animal Physiology and Ecology 

 - 4th ed. 
 - New Delhi :  S.Chand Com.  1989 
 - xii, 246 P 
<br/><br/><label>ISBN: </label>81-219-0352-1 
<br/><br/><label>Dewey Class. No.: </label>571.1