Cita APA (7th ed.)
Barnard, C. (2016). The substantive law of the EU: The four freedoms (5th ed.). Oxford University Press.
Cita Chicago (17th ed.)
Barnard, Catherine. The Substantive Law of the EU: The Four Freedoms. 5th ed. Oxford, United Kingdom: Oxford University Press, 2016.
Cita MLA (9th ed.)
Barnard, Catherine. The Substantive Law of the EU: The Four Freedoms. 5th ed. Oxford University Press, 2016.
Atenció: Aquestes cites poden no estar 100% correctes.