Dew, Gladys D. <br/><br/>
Office machinery and equipment 

 - London :  McGraw-Hill,  1984. 
 - 141p. :  ill. ; 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>070846227 
<br/><br/><label>LC Class. No.: </label>HF5548  / .D51 1982