Hergert Douglas <br/><br/>
dBase IV  complete reference for programmers 

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 - Washington  Microsoft Press  1989 
 - 628 p.  23 cm.               
 -   .
<br/><br/>  
<br/><br/>  Computers, Software 
<br/><br/><label>ISBN: </label>1556151659 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Software<br/>Computers
<br/><br/><label>Dewey Class. No.: </label>001.64  / HER