APA (7th ed.) Citation

Parsons, T. (1959). The social system (3. print.). Free Press.

Chicago Style (17th ed.) Citation

Parsons, Talcott. The Social System. 3. print. Glencoe, Ill: Free Press, 1959.

MLA (9th ed.) Citation

Parsons, Talcott. The Social System. 3. print. Free Press, 1959.