STEPHENS, E. <br/><br/>
The eementary theory of operational mathematics 
Eugene Stephens 
 - 1st ed. 
 - New York  McGraw Hill Book  1937 
 - xii,313p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>MATHEMATICS<br/>DISCRETE MATHEMATICS
<br/><br/><label>Dewey Class. No.: </label>MATH 511.02462  / SEn37