Harmer, L.C. <br/><br/>
Clerical work measurement 
by L.C. Harmer 
 - London  Her Majesty's Stationery Office  1968 
 - 27+p 
 - CAS occasional paper no. 9 .
<br/><br/><label>Dewey Class. No.: </label>I57x42 Un3C