Gasloigne, S. <br/><br/>
The purple planet: micro- prolog for the spectrum H&K 
S. Gasloine 
 - London  macmilian  1985 
 - ix,129p.;ill 
<br/><br/><label>ISBN: </label>0333388100 
<br/><br/><label>LC Class. No.: </label>QA76.8.S62.G3 1985