TY  - BOOK
AU  - DeVellis,Robert F.
TI  - Scale development:  : theory and applications
SN  - 0803937768
AV  - SOC H61.27.D48 
PY  - 1991///
CY  - Newbury
PB  -  : Sage Publications
KW  - Scaling (social sciences)
N1  - Includes bibliographical references and index
ER  -