Das Sumitabha. <br/><br/>
Unix system v.4 

 - Delhi  Tata Mcgraw Hill Pub. Co. Ltd.  1993 
 - 498p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>COMPUTER
<br/><br/><label>Dewey Class. No.: </label>621388