Cita APA (7th ed.)

Gulliksen, H., & Messick, S. (1960). Psychological scaling: Theory and applications. Wiley.

Cita Chicago (17th ed.)

Gulliksen, Harold, i Samuel Messick. Psychological Scaling: Theory and Applications. New York: Wiley, 1960.

Cita MLA (9th ed.)

Gulliksen, Harold, i Samuel Messick. Psychological Scaling: Theory and Applications. Wiley, 1960.