Creswell, John w <br/><br/>
designing and conducting mixed methods research 

 - 2ND EDITION 
 - Los Angeles  SAGE Publications  2011 
 - xxvi;457 pages  24 cm 
<br/><br/><label>ISBN: </label>9781412975179 
<br/><br/><label>Dewey Class. No.: </label>004.42 CRES