Brij, Gopal <br/><br/>
Elements of ecology / 
Brij, Gopal 
 - vi, 200 p. ; 23 cm. 
<br/><br/><label>ISBN: </label>0706915607 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ecologia.
<br/><br/><label>Dewey Class. No.: </label>581.5