Dbase III plus handbook 
Chou, George Tsu-der. 
 -  Que, Corporation.  1992 
 - 519 pages. 
<br/><br/>
<br/><br/><label>ISBN: </label>0-88022-269-7 
<br/><br/><label>Dewey Class. No.: </label>001.642 Ch47d 1992