"Purdhit, V B" <br/><br/>
Recent Advances in Ecology and Environment 

 - \\198800ENGGPSX 
 - Today & Tomorrows Printers & Publishers   1988  New Delhi 
 - 130p 
<br/><br/> includes index and biblioraphy 
<br/><br/><label>ISBN: </label>8170193281