Insights into modern mathematics :  twenty-third yearbook. 

 - Washington D.C. :  National Council of Teacher of Mathematics,  c 1959. 
 - viii, 440 p. :  ill. ;  23 cm. 
<br/><br/> Includes index.    
<br/><br/>318  318 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics.
<br/><br/><label>Dewey Class. No.: </label>510 / T918i