Dilloway Cliff <br/><br/>
Purchasing computer software products    A guide for users of computer software etc. 

 -  1985 
<br/><br/><label>Standard No.: </label>79464 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Dewey Class. No.: </label>D6,8(B),2, M5