Dyfyniad APA

Organisation for Economic Co-operation and Development. Steering Group on Energy and the Environment. (1977). Energy production and environment. Organisation for Economic Co-operation and Development ; sold by OECD Publications Center].

Dyfyniad Arddull Chicago

Organisation for Economic Co-operation and Development. Steering Group on Energy and the Environment. Energy Production and Environment. Paris : [Washington, D.C.: Organisation for Economic Co-operation and Development ; sold by OECD Publications Center], 1977.

Dyfyniad MLA

Organisation for Economic Co-operation and Development. Steering Group on Energy and the Environment. Energy Production and Environment. Organisation for Economic Co-operation and Development ; sold by OECD Publications Center], 1977.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.