Graham, Ian. <br/><br/>
Step-by-Step Programming :  ZX Spectrum+ / 
Ian Graham . 
 - Barcelona :  Dorling,  1984 . 
<br/><br/><label>ISBN: </label>0863180965 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Computer Programming and Architecture
<br/><br/><label>LC Class. No.: </label>QA76.8