Schipper, L., Meyers, S., & Institute, S. E. (1992). Energy efficiency and human activity: Past trends, future prospects. Cambridge [England] ; New York, NY, USA : Cambridge University Press.
Dyfyniad Arddull ChicagoSchipper, Lee, Stephen Meyers, and Stockholm Environment Institute. Energy Efficiency and Human Activity: Past Trends, Future Prospects. Cambridge [England] ; New York, NY, USA : Cambridge University Press, 1992.
Dyfyniad MLASchipper, Lee, et al. Energy Efficiency and Human Activity: Past Trends, Future Prospects. Cambridge [England] ; New York, NY, USA : Cambridge University Press, 1992.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.