Marczyk, Geoffrey. <br/><br/>
Essentials of research design and methodology / 
Geoffrey Marczyk. 
 - 290 pages. 
<br/><br/> Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>0-471-47053-8 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Psychology--Research--Methodology.