Dyer, Henry S. <br/><br/>
Problems in mathematical education / 
by Henry S. Dyer, Robert Kalin and Frederic M. Lord. 
 - New Jersey :  Educational Testing Sevice,  1956. 
 - 50 p.:  ill.;  22 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics--Study and teaching