Hansen, Per Brinch. <br/><br/>
Operating system principles 
by Per Brinch Hansen 
 - New Delhi  Prentice-Hall of India  1973 
 - xviii, 366p. , incl. bibl., ind. 
 - Prentice-Hall Series in Automatic Computation   .
<br/><br/><label>ISBN: </label>0876921357 
<br/><br/><label>Dewey Class. No.: </label>001.64404  / N731