Ruel V Churchill <br/><br/>
Operational Mathematics 

 - 3rd Ed 
 - Tokya  McGraw Hill KogaKusha Ltd 
 - 481p 
<br/><br/>Ruel V Churchill: Operational Mathematics.  (3rd Ed)  Tokya.  McGraw Hill KogaKusha Ltd, 1958-72.--(519.92CHU)   
<br/><br/><br/>ENGLISH 
<br/><br/><label>Dewey Class. No.: </label>519.92  / CHU