Singh, Y.K.. <br/><br/>
Teching Of Environmental science 

 - New Delhi  APH Publishing Corporation  2005 
 - x,366 
<br/><br/><label>ISBN: </label>81-7648-909-3 
<br/><br/><label>Subjects--Facted Index Terms: </label><br/>
<br/><br/><label>Dewey Class. No.: </label>370:574.5