Creswell, John W <br/><br/>
Research design    qualitative, quantitative and mixed methods approaches 
John W Creswell 
 - 3rd 
 - Thousand Oaks   California    Sage Publications 
<br/><br/><label>ISBN: </label>9781412965576 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Social Sciences-- Research-- Methodology
<br/><br/><label>LC Class. No.: </label>H 62 .C74 2009