Patton, Michael Quinn. <br/><br/>
Qualitative Research and Evaluation Methods 3rd Edition / 
Michael Quinn Patton. 
 - London :  Sage Publications,  2002. 
 - 3rd ed. xxiv, 598p. :  ill. ;  26 cm. 
<br/><br/> Includes Index. 
<br/><br/>Includes bibliographical references. 
<br/><br/><label>ISBN: </label>0761919716 (hbk.) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Research Methods.