Style de citation APA (7e éd.)

Green, N., Hartley, T. C., & Usher, J. A. (1991). The legal foundations of the single European market. Oxford University Press.

Style de citation Chicago (17e éd.)

Green, Nicholas, Trevor C. Hartley, et John A. Usher. The Legal Foundations of the Single European Market. Oxford: Oxford University Press, 1991.

Style de citation MLA (9e éd.)

Green, Nicholas, et al. The Legal Foundations of the Single European Market. Oxford University Press, 1991.