TY  - BOOK
AU  - DeVellis, Robert F.
TI  - Scale development: theory and applications 
T2  - Applied social research methods series
SN  - 9781412980449
AV  - H 61.27 D483S 2012
PY  - 2012///
CY  - Los Angeles, Calif.
PB  - SAGE
KW  - Scaling (Social sciences)
N1  - Includes bibliographical references and index
ER  -