Patton, Michael Quinn. <br/><br/>
Qualitative research and evaluation methods /  
Michael Quinn Patton. 
 - 4th ed. 
 - Los Angeles :    SAGE,    2015. 
 - xxi, 806p. :    ill. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>9781412972123 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Social sciences--Methodologyy.<br/>Evaluation research (Social action programs).
<br/><br/><label>LC Class. No.: </label>H 62 PAT 2015