Churchill, Ruel V. <br/><br/>
Operational mathematics / 
Churchill, Ruel V. 
 -  Mcgraw-Hill Kogakusha, Ltd., Tokyo 
 - 481 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics
<br/><br/><label>Dewey Class. No.: </label>517.35  / CHUO