Webb, David. <br/><br/>
Super charge your spectrum / 
By David Webb. 
 - 1st ed. 
 - USA :  Melbourne House Publishers ,  1983. 
 - 182p. ;  PB  21 cm. 
<br/><br/><label>ISBN: </label>861611128 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Routines for the attributes<br/>Routines for the text and graphics<br/>Complete and detailed breakdown of useful system variables
<br/><br/><label>Dewey Class. No.: </label>005.101   / WEBD