SIMPSON, Alan <br/><br/>
Understanding dBase IV 2.0 for Dos 

 - 4th ed 
 - Singapore  Tech Publications Pvt Ltd  1989 
 - xIii, 1008 
<br/><br/><label>ISBN: </label>981-214-409-9 
<br/><br/><label>Dewey Class. No.: </label>5.7565