Johnson, Burke <br/><br/>
Educational research :  quantitative, qualitative, and mixed approaches / 
R. Burke Johnson, University of South Alabama, Larry Christensen, University of South Alabama. 
 - Seventh Edition. 
 - xxxi, 672 pages ;  26 cm 
<br/><br/> Sixth edition: 2017.  Includes webography. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>9781544337838  RM672.66 (ptsl) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Education research.