Ary, Donald. <br/><br/>
Introduction To Research In Education. 

 -  Harcourt Brace College  1990 
 - XVIII, 590 P. 24 CM. 
<br/><br/><label>ISBN: </label>155009826 
<br/><br/><label>Dewey Class. No.: </label>370.78 ARY 1990