Cita APA (7a ed.)

Barnard, C. (2019). The substantive law of the EU: The four freedoms (6th ed.). Oxford University Press.

Cita Chicago Style (17a ed.)

Barnard, Catherine. The Substantive Law of the EU: The Four Freedoms. 6th ed. Oxford, United Kingdom: Oxford University Press, 2019.

Cita MLA (9a ed.)

Barnard, Catherine. The Substantive Law of the EU: The Four Freedoms. 6th ed. Oxford University Press, 2019.