Duffy, Tim <br/><br/>
Four software tools plus: applications and concepts 

 - Belmont, California  Wadsworth Publishing Company  1989 
 - xxvii,645p.  27cm. 
<br/><br/><label>ISBN: </label>053410164X 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Microcomputers
<br/><br/><label>LC Class. No.: </label>QA76.6.D82