Dufay, Frank R. <br/><br/>
Ungrading the elementary school 
Frank R. Dufay. 
 - West Nyack, N.Y.  Parker Pub. Co.  [1966] 
 - 230 p.  illus.. 
<br/><br/> 920901 
<br/><br/>Bibliographical footnotes. 
<br/><br/><label>LCCN: </label>65025232 //r90 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Nongraded schools<br/>Education , Elementary
<br/><br/><label>LC Class. No.: </label>LB3061  / .D8 
<br/><br/><label>Dewey Class. No.: </label>372.1254