Freitag, Herta Toussig <br/><br/>
The number story 

 - Washington  : National Council of Teachers of Mathematics,  1960 
 - 76p.  : ill.  ; 22cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Numerals<br/> Numeration<br/>Mathematical notation
<br/><br/><label>LC Class. No.: </label>MATH PAM QA241.F7