Das Sumitabha.  <br/><br/>
Unix concepts and application 

 - 4th edition. 
 - New delhi :   Tata Mcgraw Hill,   2009. 
 - 670.  
<br/><br/><label>ISBN: </label>13:978-0-07-063546-3  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Engineering,
<br/><br/><label>Dewey Class. No.: </label>005.422  / DAS