Dyson, Peter <br/><br/>
Mastering the Norton utilities / 
Peter Dyson 
 - Singapore : Tech Publications,  1989 
<br/><br/> 'Through version 4.5' - cover 
<br/><br/><label>Subjects--Uniform Titles: </label><br/>Norton utilities (Computer programs)
<br/><br/><label>Subjects--Topical Terms: </label><br/>Utilities (Computer programs)