DeVellis, Robert F. <br/><br/>
Scale Development: theory and applications 
Robert F. DeVellis 
 - 3rd ed. 
 - New Delhi  Sage Publications India Pvt. Ltd  2012 
 - ix, 205p. 
<br/><br/><label>ISBN: </label>9781412980449 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Scaling (Social sciences) 
<br/><br/><label>Dewey Class. No.: </label>003.72 DEV