Banks, D. (2012). An introduction to thermogeology: Ground source heating and cooling (2nd edition.). John Wiley & Sons, Ltd.
Dyfyniad Arddull ChicagoBanks, David. An Introduction to Thermogeology: Ground Source Heating and Cooling. 2nd edition. Chichester, West Sussex, UK: John Wiley & Sons, Ltd, 2012.
Dyfyniad MLABanks, David. An Introduction to Thermogeology: Ground Source Heating and Cooling. 2nd edition. John Wiley & Sons, Ltd, 2012.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.