Subrahamanyam, N.S. <br/><br/>
Ecology 
N.S. Subrahmanyam 
 - New Delhi  Narosa publishing house  2000 
 - 616p. 
<br/><br/><label>ISBN: </label>81-7319-289-8  275 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Botany