Cita APA

DeVellis, R. F., & DeVellis, R. F. (2003). Scale development: Theory and applications (2. edition.). Thousand Oaks: SAGE.

Citación estilo Chicago

DeVellis, Robert F., y Robert F. DeVellis. Scale Development: Theory and Applications. 2. edition. Thousand Oaks: SAGE, 2003.

Cita MLA

DeVellis, Robert F., y Robert F. DeVellis. Scale Development: Theory and Applications. 2. edition. Thousand Oaks: SAGE, 2003.