Kersey, Alfred Thomas John <br/><br/>
Blaine's the slide rule as an aid calculating 

 - 7a. ed. 
 - London :   Spon,   1952. 
 - ix, 124 p. :   front. (il.), il., gráfs., tab ;   19 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>CALCULO
<br/><br/><label>Universal Decimal Class. No.: </label>517