Kormondy, Edward J. <br/><br/>
Concepts of Ecology / 
by Edward j. Kormondy. 
 - 4th ed.  Eastern Economy Edition. 
 - New Delhi:  PHI Learning Private Lmt.  c1999. 
 - xv,559p.;  ill.;  23cm. 
<br/><br/> Include Index and Bibliographic reference. 
<br/><br/><label>ISBN: </label>9788120311480 
<br/><br/><label>LC Class. No.: </label>QH 541  / .K59 1996