Beck,L.L, <br/><br/>
System Software and Introduction to Systems Programming   

 - 3rd /   2007. 
 - Delhi:  Pearson Education.  2007. 
 - 495p:  25cm. 
<br/><br/><label>Subjects--Personal Names: </label><br/>Computer, System Software. 
<br/><br/><label>Dewey Class. No.: </label>001.642