Agrawal, K.C. <br/><br/>
Fundamentals of Environmental Biology 
/ by K.C. Agrawal 
 - Bikaner;  Nidhi Publishers ( India ):  2001. 
 - viii, 507p. 
<br/><br/><label>ISBN: </label>8190118129 
<br/><br/><label>Dewey Class. No.: </label>577  / AGR/F