Patton, Michael Quinn. <br/><br/>
Qualitative research and evaluation methods 

 - 3 ed. 
 - Thousand Oaks, Calif. :  Sage Publications,  c2002. 
 - xxiv, 598, [65] p. :  ill. ; 
<br/><br/><label>ISBN: </label>0761919716 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Social sciences<br/>Evaluation research (Social action programs)
<br/><br/><label>Dewey Class. No.: </label>001.4 PAT-Q