Mark, L Mitchell. <br/><br/>
Research design explained /  
Mark L. Mitchell, Janina M. Jolley. 
 - 7th ed. 
 - Australia :    Wadsworth Cengage Learning,    c2010. 
 - xxiii, 645 p. ;    24 cm. 
<br/><br/>  Includes index. 
<br/><br/><label>ISBN: </label>9780495803997 0495803995 
<br/><br/><label>Subjects--Topical Terms: </label><br/> Research -- Methodology.
<br/><br/><label>Dewey Class. No.: </label>650.072