Litton, Gerry <br/><br/>
Understanding PFS :  first choice / 
by Gerry Litton 
 - Singapore :   Tech Publications,   1989 
 - xxxiii, 489 p. :   ill. ;   23 cm. 
<br/><br/> Includes index 
<br/><br/><label>ISBN: </label>9813091584 (pbk.) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Integrated software
<br/><br/><label>LC Class. No.: </label>QA76.76.I57 L58 1989 
<br/><br/><label>Dewey Class. No.: </label>005.39/2 20