Creswell, John W. <br/><br/>
Research design / 
By John W Creswell. 
 - 4th ed. 
 - USA :  SAGE PUBLICATION,  2014. 
 - 273p. ;  00 cm. 
<br/><br/><label>ISBN: </label>9781452274614 
<br/><br/><label>Subjects--Topical Terms: </label><br/>SOCIAL SCIENCE.
<br/><br/><label>Dewey Class. No.: </label>300  / CRE