Cita APA (7a ed.)

Usher, J. A., & Plender, R. (1993). Plender and Usher's cases and materials on the law of the European Communities (3rd ed., by John A. Usher.). Butterworths.

Cita Chicago Style (17a ed.)

Usher, John Anthony, y Richard Plender. Plender and Usher's Cases and Materials on the Law of the European Communities. 3rd ed., by John A. Usher. London [etc.]: Butterworths, 1993.

Cita MLA (9a ed.)

Usher, John Anthony, y Richard Plender. Plender and Usher's Cases and Materials on the Law of the European Communities. 3rd ed., by John A. Usher. Butterworths, 1993.