Hartu hau. : District heating and cooling in the United States [electronic resource] : prospects and issues / Committee on District Heating and Cooling, Energy Engineering Board and Building Research Board, Commission on Engineering and Technical Systems, National Research Council.

Izenburua : District heating and cooling in the United States [electronic resource] : prospects and issues / Committee on District Heating and Cooling, Energy Engineering Board and Building Research Board, Commission on Engineering and Technical Systems, National Research Council.

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