Campbell, Mary. <br/><br/>
Teach yourself dBase IV / 
Mary Campbell. 
 - Berkeley :  Osborne McGraw-Hill,  c1989. 
 - xv, 688 p. : ill. 
<br/><br/><label>ISBN: </label>0078815029 
<br/><br/><label>Subjects--Topical Terms: </label><br/>dBase IV (Computer programme).<br/>Database management.