DeVellis, Robert F. <br/><br/>
Scale development :   theory and applications /  
by Robert F. DeVellis. 
 - 3rd ed. 
 - Thousand Oaks, Calif. :   SAGE Publishings,   2012. 
 - ix, 205 p. : ill. ; 22 cm. 
<br/><br/>Include Index 
<br/><br/><label>ISBN: </label>9781412980449   
<br/><br/><label>Subjects--Topical Terms: </label><br/>Applied social research
<br/><br/><label>Dewey Class. No.: </label>300.72  / DEV/S