International Energy Agency. (1981). Energy research, development, and demonstration: Activities of the IEA 1981/82. Washington, D.C: Sold by OECD Publications and Information Center.
Παραπομπή Chicago StyleInternational Energy Agency. Energy Research, Development, and Demonstration: Activities of the IEA 1981/82. Washington, D.C: Sold by OECD Publications and Information Center, 1981.
Παραπομπή MLAInternational Energy Agency. Energy Research, Development, and Demonstration: Activities of the IEA 1981/82. Washington, D.C: Sold by OECD Publications and Information Center, 1981.
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