Singh, J. S. <br/><br/>
Ecology environment and resource conservation 
by J. S. Singh S. P. Singh and S. R. Gupta 
 - New Delhi  Anamaya Publishers  c2006 
 - xxvii,688p.; 26cm. 
<br/><br/><label>ISBN: </label>8188342556 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ecology <br/>Resource conservation <br/>Environmental protection
<br/><br/><label>Dewey Class. No.: </label>575.5  / SIN