APA引文
Barnard, C. (2016). The substantive law of the EU: The four freedoms (5th ed.). Oxford University Press.
Chicago Style (17th ed.) Citation
Barnard, Catherine. The Substantive Law of the EU: The Four Freedoms. 5th ed. Oxford, United Kingdom: Oxford University Press, 2016.
MLA引文
Barnard, Catherine. The Substantive Law of the EU: The Four Freedoms. 5th ed. Oxford University Press, 2016.
警告：這些引文格式不一定是100％准確.