Olson, A. T. <br/><br/>
Mathematics through paper folding / 
Alton T. Olson. 
 - Reston, Va. :  National Council of Teachers of Mathematics,  1975. 
 - iv, 60 p. :  ill. 
<br/><br/><label>ISBN: </label>0873530764 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics--Study and teaching--Audio-visual aids.<br/>Paper work.