Howitt, Dennis. <br/><br/>
Introduction to research methods in psychology / Dennis Howitt and Duncan Cramer. 

 - 4th ed. 
 - New York :   Pearson,    2014. 
 - xxii,508p.:   ill. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>9780273775058 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Psychology--Research--Methodology.
<br/><br/><label>LC Class. No.: </label>BF 76.5 HOW 2014