Historical topics for the mathematical classroom :  thirty-first yearbook / 
Editorial panel, John K. Baumgart and others. 
 - Washington :  National Council of Teachers of Mathematics,  1969. 
 - xiv, 524 p. :  ill. ;  24 cm. 
 - Yearbooks (National Council of Teachers of Mathematics) .
 - Yearbooks (National Council of Teachers of Mathematics). .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics--History.