Barnard, C. (2007). The substantive law of the EU: The four freedoms. 2nd ed. Oxford University Press.
Chicago Style (17. basım) AtıfBarnard, Catherine. The Substantive Law of the EU: The Four Freedoms. 2nd Ed. Oxford; New York: Oxford University Press, 2007.
MLA (9th ed.) AtıfBarnard, Catherine. The Substantive Law of the EU: The Four Freedoms. 2nd Ed. Oxford University Press, 2007.
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