Creswell, John <br/><br/>
Research design,  qualitative, quantitative, and mixed methods approaches 

 - 4 ed. 
 - Los Angeles  Sage  2014 
 -  271 p. 
<br/><br/><label>ISBN: </label>9781452226095 
<br/><br/><label>Subjects--Topical Terms: </label><br/>PRELIMINARY<br/>DESIGNING<br/>RESEARCH
<br/><br/><label>Dewey Class. No.: </label>300.72  C923r4