International Energy Agency , Organisation for Economic Co-operation and Developmentc1994Energy and the environment series / International Energy Agency
International Energy Agency , Organisation for Economic Co-operation and Developmentc1993Energy and the environment series / International Energy Agency
International Energy Agency , Organisation for Economic Co-operation and Developmentc1992Energy and the environment series / International Energy Agency
Organisation for Economic Co-operation and Development , International Energy Agencyc1991Energy and the environment series / International Energy Agency