Verma, PS. <br/><br/>
Principles of ecology: environmental biology 

 - Delhi  S. Chand  1989 
 - viii, 591p, 22 cm. 
<br/><br/> Book lost & 3 times cost (Rs 35 x 3 = 105) recovered vide challan No.3740 dated 05.12.19 
<br/><br/><label>Dewey Class. No.: </label>574.5,  / D, ver