Qualitative inquiry and research design : Choosing among five approaches 
John W. Creswell. 
 - 3rd edition. 
 -  SAGE Publications, Inc.  2013 
 - xxi, 448 pages 
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<br/><br/><label>ISBN: </label>978-1-41299530-6 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Social sciences -- Methodology.
<br/><br/><label>Dewey Class. No.: </label>GS 300.72 C923 2013