Creswell, John W. <br/><br/>
Research design :    qualitative, quantitative, and mixed methods approaches /  
John W. Creswell. 
<br/><br/><label>ISBN: </label>9781412965576 (pbk.) 1412965578 (pbk.) 
<br/><br/><label>LCCN: </label>2008006242 
<br/><br/><label>Dewey Class. No.: </label>300.72