Open University M252 <br/><br/>
Computing and computers course : Files and file processing  [Books]. 
Open University. 
 - 2nd 
 - Milton Keynes  Open University Press  1984 
 - Pages: 87 
<br/><br/><label>ISBN: </label>033514084X  0.00 
<br/><br/><label>Subjects--Personal Names: </label><br/>Computers.