Das, sumithabha  <br/><br/>
Unix :concepts and applications.  

 - 4th  
 - Tata Mc-Graw hill   New Delhi   2007 
 -  325 
<br/><br/><label>ISBN: </label>0-07-053475-6  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Operating systems 
<br/><br/><label>Dewey Class. No.: </label>005 .43 DAS