Swain, Robert L  <br/><br/>
Understandig arithmetic /  
Robert L Swain 
 - New York :   Holt, Rinehart and Winston ,  1963 
 - xxi,268 p.  23 cm. 
<br/><br/>Includes index 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Arithmetic;Mathematics
<br/><br/><label>Dewey Class. No.: </label>513  / SWU