| July, 2008 | United Nations Development Programme, United Nations Environment Programme, World Bank, World Resources Institute |
| September, 2005 | United Nations Development Programme, United Nations Environment Programme, The World Bank, World Resources ... |
| June, 2004 | Programa de las Naciones Unidas para el Desarrollo (UNDP), Programa de las Naciones Unidas para el Medio Ambiente ... |
| July, 2003 | United Nations Development Programme, United Nations Environment Programme, World Bank, World Resources Institute |
| July, 2003 | World Resources Institute |
| September, 2000 | United Nations Development Programme, United Nations Environment Programme, World Bank, World Resources Institute |
| May, 1998 | A joint publication by the World Resources Institute, the United Nationas Environment Programme, the United ... |
| April, 1996 | World Resources Institute, United Nations Environment Programme, United Nations Development Programme, and the ... |
| March, 1994 | World Resources Institute in collaboration with the United Nations Environment Programe and the United Nations ... |
| March, 1992 | World Resources Institute in collaboration with the United Nations Environment Programme and the United Nations ... |
