Dew, Gladys D. <br/><br/>
Office Machinery and Equipment/ 

 - london  McGraw-Hill Book Company ltd.  1982 
 - 141p.;  ill.; 
<br/><br/>includes index 
<br/><br/><label>ISBN: </label>0070846227 
<br/><br/><label>LC Class. No.: </label>HF5548  / .D51 1982