Verma, P. S. <br/><br/>
Environmental Biology (Principles of Ecology) 

 - 2nd. 
 - New Delhi :  S. Chand,  2023. 
 - 591p.  PB 
<br/><br/><label>ISBN: </label>9788121908597 
<br/><br/><label>Subjects--Personal Names: </label><br/>Environmental Science
<br/><br/><label>Dewey Class. No.: </label>577.07  / VER