Cita APA (7a ed.)

Parsons, T. (1971). The system of modern societies. Prentice-Hall.

Cita Chicago Style (17a ed.)

Parsons, Talcott. The System of Modern Societies. New Jersey: Prentice-Hall, 1971.

Cita MLA (8a ed.)

Parsons, Talcott. The System of Modern Societies. Prentice-Hall, 1971.