Hartley, T. (1994). The foundations of European community law: An introduction to t he constitutional and administrative law of the European Community (3rd ed.). Oxford: Clarendon Press.

Hartley, T.C. The Foundations of European Community Law: An Introduction to T He Constitutional and Administrative Law of the European Community. 3rd ed. Oxford: Clarendon Press, 1994.

Hartley, T.C. The Foundations of European Community Law: An Introduction to T He Constitutional and Administrative Law of the European Community. 3rd ed. Oxford: Clarendon Press, 1994.