एपीए उद्धरण

DeVellis, R. F. (2017). Scale development: Theory and applications (4th ed.). Sage.

शिकागो स्टाइल उद्धरण

DeVellis, Robert F. Scale Development: Theory and Applications. 4th ed. Los Angeles: Sage, 2017.

एमएलए उद्धरण

DeVellis, Robert F. Scale Development: Theory and Applications. 4th ed. Sage, 2017.