Postman, Andrew. <br/><br/>
Using hal :  a guide to achieving greater productivity with lotus 1-2-3's companion product / 
Andrew Postman.  
 - xvi, 557 pages :  illustrations;   23 cm. 
<br/><br/>includes index. 
<br/><br/> College of Engineering and Computer Studies  Bachelor of Science in Computer Science  Bachelor of Science in Computer Engineering 
<br/><br/><label>ISBN: </label>0078812682 
<br/><br/><label>Dewey Class. No.: </label>001.642 P84  ©1987