Raj,S.Amal <br/><br/>
Introduction to environmental science and technology  For engineering and degree classes 
Dr.S.Amal Raj 
 - New Delhi  UNIVERSITY SCIENCE PRESS  2008 
 - 139p;  ill;  25cm 
<br/><br/> Include Reference 
<br/><br/><label>ISBN: </label>9788131805060 
<br/><br/><label>LC Class. No.: </label>628 
<br/><br/><label>Dewey Class. No.: </label>628