United Nations Department of International Economic and Social Affairs. (1957). New sources of energy and economic development: Solar energy, wind energy, tidal energy, geothermic energy, and thermal energy of the seas. United Nations.
Παραπομπή σε μορφή Chicago (17η εκδ.)United Nations Department of International Economic and Social Affairs. New Sources of Energy and Economic Development: Solar Energy, Wind Energy, Tidal Energy, Geothermic Energy, and Thermal Energy of the Seas. New York: United Nations, 1957.
Παραπομπή σε μορφή MLA (8th εκδ.)United Nations Department of International Economic and Social Affairs. New Sources of Energy and Economic Development: Solar Energy, Wind Energy, Tidal Energy, Geothermic Energy, and Thermal Energy of the Seas. United Nations, 1957.
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