APA-Zitierstil (7. Ausg.)

Barnard, C. (2004). The substantive law of the EU: The four freedoms (1. ed.). Oxford Univ. Press.

Chicago-Zitierstil (17. Ausg.)

Barnard, Catherine. The Substantive Law of the EU: The Four Freedoms. 1. ed. Oxford [u.a.]: Oxford Univ. Press, 2004.

MLA-Zitierstil (9. Ausg.)

Barnard, Catherine. The Substantive Law of the EU: The Four Freedoms. 1. ed. Oxford Univ. Press, 2004.