1. For the post-war history of organisations, see R. P. Haegler, Histoire et Ideologie du Mondialisme (Zurich: Europa Verlag, 1972)
2. and F. Laursen, Federalism and World Order: Compendiwn II (Copenhagen: World Federalist Youth, 1972).
3. The following provide short bibliographies, each of a different kind. J. Roberts, A Brief Annotated List of Works on World Federalism (London: One World Trust, 1995).
4. B. Walker (ed.), Uniting the Peoples and Nations (Washington, DC and Amsterdam: World Federalist Association and World Federalist Movement, 1993).
5. The definitive bibliography is J. P. Baratta, Strengthening the United Nations: A Bibliography on UN Reform and World Federalism (New York: Greenwood, 1987).