Topics in mathematics for elementary school teachers / 
National Council of Teachers of Mathematics. 
 - Washington:   National Council of Teachers of Mathematics,   1968.  
 - 377 p. ;  24 cm. 
 -  29 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Arithmetic--Foundations<br/>Mathematics
<br/><br/><label>Dewey Class. No.: </label>372.7