Encyclopaedia of educational research (vol.2)/ 
by Marvin C Alkin (ed.) 
 - 6th ed. 
 - NewYork:  Macmillan,  1992. 
 - 351-761p. 
<br/><br/><label>ISBN: </label>9780029004319 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Education Bibliography<br/>Educational Research<br/>Education<br/>Social Sciences
<br/><br/><label>Dewey Class. No.: </label>370.3  / MAR/E