Tootill, Alan <br/><br/>
Z80 machine code for humans / 
Alan Tootill and David Barrow 
 - London :  Granada,  1983 
 - 152 p. ;  24 cm. 
<br/><br/><label>ISBN: </label>0246120312 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Sinclair ZX80 (Computer)--Programming