Henry, Nelson B, ed. National Society for the study of education <br/><br/>
Graduate study in education  the fifteenth Yearbook of the national society for the study of education 

 - Chicago  The university of Chicago press  1951 
 - v.(vii, 369 p.); 22cm. 
<br/><br/> Contents: V.1 graduate study in education- V.2 teaching of arithmetic 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Arithmatic - study and learning<br/>College education<br/>Education<br/>Graduate education<br/>Maths teaching<br/>Teaching - mathematics<br/>Universities and colleges - graduate work