Cita APA (7th ed.)

Ryan, A. (1987). The philosophy of John Stuart Mill. Macmillan.

Cita Chicago (17th ed.)

Ryan, Alan. The Philosophy of John Stuart Mill. London: Macmillan, 1987.

Cita MLA (9th ed.)

Ryan, Alan. The Philosophy of John Stuart Mill. Macmillan, 1987.