Wiersma, William  <br/><br/>
Research Methods In Education  : An Introduction  
/ by William Wiersma 
 - 5th ed.  
 - Boston:   Aiiyn and Bacon;   1969.  
 - 443p.  
<br/><br/><label>ISBN: </label>0205127495  
<br/><br/><label>Dewey Class. No.: </label>370.78   / WIE/R