Cita APA (7a ed.)

Fox, K. A. (1974). Social indicators and social theory: Elements of an operational system. Wiley.

Cita Chicago Style (17a ed.)

Fox, Karl A. Social Indicators and Social Theory: Elements of an Operational System. New York, NY [u.a.]: Wiley, 1974.

Cita MLA (9a ed.)

Fox, Karl A. Social Indicators and Social Theory: Elements of an Operational System. Wiley, 1974.