Creswell, John W. <br/><br/>
Research design: qualitative, quantitative, and mixed method approaches   qualitative, quantitative, and mixed method approaches  
John W. Creswell. 
 - 2nd ed. 
 - Thousand Oaks, Calif. :  Sage Publications,  c2003. 
 - xxvi, 246 p. :  ill. ;  25 cm. 
<br/><br/><label>ISBN: </label>0761924418 0761924426 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Social sciences--Research--Methodology.<br/>Social sciences--Statistical methods.
<br/><br/><label>Dewey Class. No.: </label>300.72