Cita APA (7a ed.)

DeVellis, R. F. (2003). Scale development: Theory and applications (2nd ed.). Sage.

Cita Chicago Style (17a ed.)

DeVellis, Robert F. Scale Development: Theory and Applications. 2nd ed. Thousand Oaks, California [etc.]: Sage, 2003.

Cita MLA (9a ed.)

DeVellis, Robert F. Scale Development: Theory and Applications. 2nd ed. Sage, 2003.