1.

図書
図書
1. Regulatory reform : European gas
Hierl, Jochen ; International Energy Agency ; Organisation for Economic Co-operation and Development
出版情報: Paris : Organisation for Economic Co-operation and Development, c2000
シリーズ名: Energy market reform
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2.

図書
図書
2. Natural gas prospects (: pbk)
International Energy Agency
出版情報: Paris : Organisation for Economic Co-operation and Development, 1986
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