Holgate, H.C.F <br/><br/>
Exchange Arithmetic/5e 

 - 5th ed. 
 - London  Sir Isaac pitman and sons limited  1961 
 - x, 148p. 
<br/><br/><label>Subjects--Index Terms: </label>Exchange 
<br/><br/><label>Dewey Class. No.: </label>332.45  / HOL