Das, Sumitabha  . <br/><br/>
Unix concepts and applications /  
by Sumitabha Das. 
 - 4th ed /  
 - New Delhi :   Tata McGraw-Hill Publishing Company Ltd. ,   2006 
 - xxi, 671p :  
<br/><br/><label>ISBN: </label>0-07-063546-3 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Computer Science- Unix
<br/><br/><label>Dewey Class. No.: </label>BV  / P6;11