APA Edition Citation

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

Chicago Edition Citation

De Vellis, Robert F. Scale Development: Theory and Applications. 3rd ed. Los Angeles: Sage, 2012.

MLA Edition Citation

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

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