Masopn,John.O. <br/><br/>
Using IBM Microcomputers in business :  decision making with lotus 123 and dBase 11 plus. 

 - ed. 
 - New york :  Harcourt,  1991. 
 - 922 p. :  ill ;    cm. 
<br/><br/>index. 
<br/><br/><label>ISBN: </label>9780155944893 :  $ 
<br/><br/><label>Subjects--Topical Terms: </label><br/>computers.