TY  - BOOK
AU  - DeVellis, Robert F.
TI  - Scale development: theory and applications 
T2  - Applied social research methods series ; 
SN  - 9781412980449
U1  - 300.72 
PY  - 2012///
CY  - New Delhi
PB  - SAGE
KW  - Scaling (Social sciences)
N1  - Includes bibliographical references (p. 193-198) and index
ER  -