Cita APA (7a ed.)

DeVellis, R. F. (2012). Scale development: Theory and applications (3rd ed.). Sage.

Cita Chicago Style (17a ed.)

DeVellis, Robert F. Scale Development: Theory and Applications. 3rd ed. Thousand Oaks, Calif. [etc.]: Sage, 2012.

Cita MLA (9a ed.)

DeVellis, Robert F. Scale Development: Theory and Applications. 3rd ed. Sage, 2012.