Creswell, John W. <br/><br/>
Educational Research :  Planning, Conducting, and Evaluating Quantitative and Qualitative Research / 
John W. Creswell, Timothy C.Guetterman 
 - 6th edition. 
 - 709 pages :  illustration  27 cm. 
<br/><br/>Includes bibliographical references and indexes. 
<br/><br/><label>ISBN: </label>9781292337807 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Education.<br/>Research.<br/>Methodology.