Sumitabha Das <br/><br/>
Unix Concepts And Application 

 - 4th ed. 
 - Chennai,  McGraw Hill Education India PVT LTD. 
 - xxi,671p. 
<br/><br/><label>ISBN: </label>9780070635463 
<br/><br/><label>Dewey Class. No.: </label>005.43 DAS