Marczyk, Geoffrey et al. <br/><br/>
Essentials of research design and methodology. 

 - Hoboken :  John Wiley & Son s, Inc,  2005. 
 - xi, 290 p ;  21 cm. 
<br/><br/>includes bibliographical references and index. 
<br/><br/> Open. 
<br/><br/><label>ISBN: </label>0471470538 
<br/><br/><label>Subjects--Personal Names: </label><br/>DeMatteo, David jt auth.<br/>Festinger, David  jt auth.
<br/><br/><label>Subjects--Topical Terms: </label><br/>Psychology--research - methodology.