WAGNER, W. F. (1980). Energy-efficient Buildings. McGraw-Hill.
Dyfyniad Arddull ChicagoWAGNER, Walter F. Energy-efficient Buildings. McGraw-Hill, 1980.
Dyfyniad MLAWAGNER, Walter F. Energy-efficient Buildings. McGraw-Hill, 1980.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.