Schaaf, Oscar. <br/><br/>
Synchromath experiences / 
Authors: Oscar Schaaf, Scott McFadden. 
 - Chicago :  Lyons & Carnaham,  c1972. 
 - v, 469 p. :  ill. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathemathics.