William Wiersma. <br/><br/>
Research Methods in Education :  An Introduction 

 - 6th ed. 
 - Boston  Allyn and Bacon  1995 
 - 480 p. 
<br/><br/><label>ISBN: </label>0205156541 
<br/><br/><label>Subjects--Topical Terms: </label><br/>”EDUCATION -- RESEARCH”
<br/><br/><label>LC Class. No.: </label>LB1028  / W517r 1995