Dyfyniad APA

International Energy Agency. (2013). Resources to reserves 2013: Oil, gas and coal technologies for the energy markets of the future. Organisation for Economic Co-operation and Development : International Energy Agency.

Dyfyniad Arddull Chicago

International Energy Agency. Resources to Reserves 2013: Oil, Gas and Coal Technologies for the Energy Markets of the Future. Paris, France: Organisation for Economic Co-operation and Development : International Energy Agency, 2013.

Dyfyniad MLA

International Energy Agency. Resources to Reserves 2013: Oil, Gas and Coal Technologies for the Energy Markets of the Future. Organisation for Economic Co-operation and Development : International Energy Agency, 2013.

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