APA-viite (7. p.)

Willetts, P. (1996). The conscience of the world: The influence of non-governmental organisations in the UN system. Brookings Institution for the David Davies Memorial Institute of International Studies, London.

Chicago-viite (17. p.)

Willetts, Peter. The Conscience of the World: The Influence of Non-governmental Organisations in the UN System. Washington, DC: Brookings Institution for the David Davies Memorial Institute of International Studies, London, 1996.

MLA-viite (9. p.)

Willetts, Peter. The Conscience of the World: The Influence of Non-governmental Organisations in the UN System. Brookings Institution for the David Davies Memorial Institute of International Studies, London, 1996.