Dyer, Jean Royer,  1941- <br/><br/>
Understanding and evaluation educational research / 
Jean Royer Dyer. 
 - Massachusetts, EUA :  Addison-Wesley,  1979. 
 - 429 p. 
 - Addison-Wesley Series in education .
<br/><br/><label>ISBN: </label>0201011840 
<br/><br/><label>Encabezamiento--Tema: </label><br/>Educación--Investigación