Gay, L. R. <br/><br/>
Educational research competencies for analysis and application 

 - 4th ed. 
 - New York  ; Macmillan Publishing  , 1992 
 - xxv,645p. 
<br/><br/><label>ISBN: </label>0023408006   
<br/><br/><label>Subjects--Topical Terms: </label><br/>Education<br/>Educational Research
<br/><br/><label>Dewey Class. No.: </label>370.7  / GAY