APA

Rousseau J. J., . (1968). The Social contract. Middlesex: Penguin Books.

Chicago

Rousseau Jean Jacques, . 1968. The Social contract. Middlesex: Penguin Books.

Harvard

Rousseau J. J., . (1968). The Social contract. Middlesex: Penguin Books.

MLA

Rousseau Jean Jacques, . The Social contract. Middlesex: Penguin Books. 1968.