Cita APA (7th ed.)

Spector, P. E. (1992). Summated rating scale construction: An introduction. Sage.

Cita Chicago (17th ed.)

Spector, Paul E. Summated Rating Scale Construction: An Introduction. Newbury Park, Calif: Sage, 1992.

Cita MLA (9th ed.)

Spector, Paul E. Summated Rating Scale Construction: An Introduction. Sage, 1992.