Mitzel, Harold E. (Ch. Ed.) <br/><br/>
Encyclopedia of educational research : Vol.1 ... academic to economic 

 - 5th edn. 
 - New York  Macmillan Company  1982 
 - xxiii, 518p. 
 -  Vol 1 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>T48k
<br/><br/><label>Dewey Class. No.: </label>T48k  / L2.1