McSwain, E.T. <br/><br/>
Arithmetic 6 

 - 
 - U.S.A.  Laidlaw Brothers. Publishers  1963 
 - 336 
<br/><br/><label>ISBN: </label>
<br/><br/><label>Dewey Class. No.: </label>513.07 Ar 4 Br.6 c.2