Cita APA (7a ed.)

Horspool, M., & Humphreys, M. (2012). European Union law (7th ed.). Oxford University Press.

Cita Chicago Style (17a ed.)

Horspool, Margot, y Matthew Humphreys. European Union Law. 7th ed. Oxford [etc.]: Oxford University Press, 2012.

Cita MLA (9a ed.)

Horspool, Margot, y Matthew Humphreys. European Union Law. 7th ed. Oxford University Press, 2012.