Cita APA (7a ed.)

Nicoll, W., & Salmon, T. C. (1990). Understanding the European Communities (1st published.). Philip Allan.

Cita Chicago Style (17a ed.)

Nicoll, William, y Trevor C. Salmon. Understanding the European Communities. 1st published. London: Philip Allan, 1990.

Cita MLA (9a ed.)

Nicoll, William, y Trevor C. Salmon. Understanding the European Communities. 1st published. Philip Allan, 1990.