Reddy. (2009). Energy efficiency and climate change. sage.
Dyfyniad Arddull ChicagoReddy. Energy Efficiency and Climate Change. sage, 2009.
Dyfyniad MLAReddy. Energy Efficiency and Climate Change. sage, 2009.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.