Singh, Y.K. <br/><br/>
Environmental science 
/ by Y.K. Singh 
 - 1st ed. 
 - New Delhi:   New Age International Ltd. Publishers,   2006. 
 - vi, 310p. 
<br/><br/><label>ISBN: </label>8122418481 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Biodiversity<br/>Ecosystems<br/>Human population<br/>Life science
<br/><br/><label>Dewey Class. No.: </label>577  / SIN/E