APA (7th ed.) Citation

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

Chicago Style (17th ed.) Citation

Green, Nicholas, Trevor C. Hartley, and John Anthony Usher. The Legal Foundations of the Single European Market. Oxford [u.a.]: Oxford Univ. Press, 1991.

MLA (9th ed.) Citation

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