Arvind Kumar <br/><br/>
Verms and vermitechnology 

 - New Delhi  A. P. H. Publishing Corporation  2005 
 - x,200p. 
<br/><br/><label>ISBN: </label> RS 795.00 
<br/><br/><label>Source: </label> RS 795.00 
<br/><br/><label>Dewey Class. No.: </label>591 ARV