Cita APA (7a ed.)

Wilke, M., & Wallace, H. (1990). Subsidiarity: Approaches to power-sharing in the European Community. Royal Institute of International Affairs.

Cita Chicago Style (17a ed.)

Wilke, Marc, y Hellen Wallace. Subsidiarity: Approaches to Power-sharing in the European Community. London: Royal Institute of International Affairs, 1990.

Cita MLA (9a ed.)

Wilke, Marc, y Hellen Wallace. Subsidiarity: Approaches to Power-sharing in the European Community. Royal Institute of International Affairs, 1990.