APA (7th ed.) Citation

Parsons, T. (1951). The social system. Routledge and Kegan.

Chicago Style (17th ed.) Citation

Parsons, Talcott. The Social System. Londres: Routledge and Kegan, 1951.

MLA (9th ed.) Citation

Parsons, Talcott. The Social System. Routledge and Kegan, 1951.