Arora, Mohan P. . <br/><br/>
Ecology /  
Mohan P. Arora. 
 - Bombay :   Himalaya Publishing House ,   1990. 
 - vi,187 p. :  ills. ;  22 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>ECOLOGY
<br/><br/><label>Dewey Class. No.: </label>577  / ARO/E