Upton, Clifford B.    1877- <br/><br/>
First days with numbers. 

 - New York :    American Book Co.,    1960. 
 - 160 p. :    ill. ;    19 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/> Arithmetic.
<br/><br/><label>Dewey Class. No.: </label>511 UPT