Creswell, John W. <br/><br/>
Research design  qualitative, quantitative, and mixed methods approaches 
John W. Creswell 
 - 3rd ed. 
 - Thousans Oaks, Calif.  SAGE Publications  c2009 
 - xxix, 260 p.; 26 cm. 
<br/><br/> Includes bibliographical references and index 
<br/><br/><label>ISBN: </label>9781412965569 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Social sciences--Research--Methodology<br/>Social science--Statistical methods
<br/><br/><label>LC Class. No.: </label>H 62  / .C6963 2009