Walker, Tricia <br/><br/>
Computer science 
Tricia Walker 
 - Hertfordshire, U.K. :  Phoenix Elt.,  1989 
 - 153 p. :  il. 
<br/><br/><label>ISBN: </label>013280199X 
<br/><br/><label>Subjects--Topical Terms: </label><br/>INGLES TECNICO<br/>INGLES--ESTUDIO Y ENSEÑANZA
<br/><br/><label>Dewey Class. No.: </label>428  / W185