Sumitabha Das <br/><br/>
Unix : concepts and applications 

 - 3 
 - New Delhi  Tata McGraw-Hill  2003 
 - xxiii, 673p.   
<br/><br/> Includes bibliographical references and index 
<br/><br/><label>ISBN: </label>70534756 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Operating system<br/>Operating system -- Unix