Walsh, James <br/><br/>
Spectrum machine code made easy 

 - London  : Interface Publishers,   1983 
 - 221p.  
<br/><br/><label>ISBN: </label>0 907563-43 0 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Computer science <br/>| Flow - Charting <br/>| Computer codes <br/>| Machinery language 
<br/><br/><label>Dewey Class. No.: </label>001.6424 W