13.		United Nations conference on new sources of energy: solar energy, wind power and geothermal energy
14.		United Nation conference on new sources of energy: solar energy, wind power and geothermal energy
15.		United Nations conference on new sources of energy: solar energy, wind power and geothermal energy
16.		United Nations conference on new sources of energy: solar energy, wind power and geothermal energy
17.		United Nations conference on new sources of energy: solar energy, wind power and geothermal energy
18.		United Nations conference on new sources of energy: solar energy, wind power and energy geothermal
19.		United Nations conference on new sources of energy: solar energy, wind power and geothermal energy