Cita APA (7a ed.)

Hay, P. (2017). The law of the United States: An introduction. Routledge.

Cita Chicago Style (17a ed.)

Hay, Peter. The Law of the United States: An Introduction. Milton Park, Abingdon, Oxon ; New York, NY: Routledge, 2017.

Cita MLA (9a ed.)

Hay, Peter. The Law of the United States: An Introduction. Routledge, 2017.