APA Edition Citation

De Vellis, R. F. (1991). Scale development: Theories and applications (1.). Sage Publications.

Chicago Edition Citation

De Vellis, Robert F. Scale Development: Theories and Applications. 1. New Delhi: Sage Publications, 1991.

MLA Edition Citation

De Vellis, Robert F. Scale Development: Theories and Applications. 1. Sage Publications, 1991.

Warning: These citations may not always be 100% accurate.