Dyfyniad APA
(2014). Renewables information: 2014 with 2013 data. International Energy Agency.
Dyfyniad Arddull Chicago
Renewables Information: 2014 with 2013 Data. Paris, France: International Energy Agency, 2014.
Dyfyniad MLA
Renewables Information: 2014 with 2013 Data. International Energy Agency, 2014.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.