Cyfyngwch eich canlyniadau yn ôl:
- Pob un
- League of Nations Union. Welsh National Council, 2 canlyniadau
- League of Nations, 1 canlyniadau
- National Peace Council., 1 canlyniadau
- International Peace Campaign., 1 canlyniadau
- United Nations Association., 1 canlyniadau
- League of Nations Union -- Archives., 1 canlyniadau
- League of Nations Union. Welsh National Council -- Archives, 1 canlyniadau
- United Nations Association -- Archives., 1 canlyniadau