Purohit, S S Shammi, Q J Agrawal, A K <br/><br/>
Environmental sciences : a new approach 

 - Jodhpur  Agrobios  2004 
 - 397 
<br/><br/><label>ISBN: </label>81-7754-210-9 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Environmental,sciences,:
<br/><br/><label>Dewey Class. No.: </label>628.5  PUR;1  R