"Cresswell, John W.; Clark, Vicki L. Plano" <br/><br/>
Designing and conducting mixed methods research 

 - London  Sage  2007 
 - 275p. 
<br/><br/><label>ISBN: </label>9781412927925 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Social sciences-Research-Methodology
<br/><br/><label>Dewey Class. No.: </label>001.42 CRE