Hursch, Jack L. <br/><br/>
dBASE IV :  essentials / 
Jack L. Hursch and Carolyn J. Hursch 
 - Singapore :  Tech,  1988 
 - 308 p. :  ill. ; 23 cm. 
<br/><br/><label>ISBN: </label>9813091525 
<br/><br/><label>LCCN: </label>91-42371 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Object-oriented databases