Creswell, John W. <br/><br/>Research design:  qualitative, quantitative, and mixed methods approaches/ John W. Creswell.  -- 3rd ed.  -- Los Angeles, California;  SAGE Publications, Inc.,  2009. <br/>xxviii, 260 p.;  29 cm. <br/><br/> Includes bibliographical references and indexes. <br/><br/><label>ISBN: </label>9791412965569 <br/><br/><label>Subjects--Topical Terms: </label><br/>Behavioral Sciences methods.<br/><br/><label>Dewey Class. No.: </label>GSL 300.72 C865 2009