Cita APA (7th ed.)

Gray, J. (1996). Mill on liberty: A defence (2nd ed.). Routledge & K. Paul.

Cita Chicago (17th ed.)

Gray, John. Mill on Liberty: A Defence. 2nd ed. London ; New York: Routledge & K. Paul, 1996.

Cita MLA (9th ed.)

Gray, John. Mill on Liberty: A Defence. 2nd ed. Routledge & K. Paul, 1996.