Applied Typing And Information Processing 
by Drummond,Archie. 
 - Sixth edition. 
 - United Kingdom,  Stanley Thornes (Publishers) Ltd,  1994. 
 - 109p. 
<br/><br/><label>ISBN: </label>0-7487-1897-4 
<br/><br/><label>LC Class. No.: </label>Z49   /  .D78  1994