TY  - BOOK
AU  - DeVellis,Robert F.
TI  - Scale development: theory and applications 
T2  - Applied social research methods series
SN  - 9780761926054
AV  - H61.27 .D48 2003
PY  - 2003///
CY  - Thousand Oaks, Calif.
PB  - Sage Publications, Inc.
KW  - Scaling (Social sciences)
N1  - Includes bibliographical references and index
ER  -