Creswell, J.W <br/><br/>
Research design: qualitative, quantitative, and mixed meyhods approaches 

 - 3rd 
 - Carlifonia  SAGE Publications  2009 
 - xxix, 260p. 
<br/><br/><label>ISBN: </label>978-1-4129-6557-6 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Research|Design
<br/><br/><label>LC Class. No.: </label>H 62 .C74 2009