Cita APA (7th ed.)

Rawls, J. (1999). A theory of justice (2a. ed.). The Belknap Press.

Cita Chicago (17th ed.)

Rawls, John. A Theory of Justice. 2a. ed. Cambridge: The Belknap Press, 1999.

Cita MLA (9th ed.)

Rawls, John. A Theory of Justice. 2a. ed. The Belknap Press, 1999.