Smil, V., & Cornish, E. S. (1974). Energy and the environment: A long-range forecasting study. Department of Geography, University of Manitoba.

Smil, Vaclav, and Edward S. Cornish. Energy and the Environment: A Long-range Forecasting Study. Winnipeg: Department of Geography, University of Manitoba, 1974.

Smil, Vaclav, and Edward S. Cornish. Energy and the Environment: A Long-range Forecasting Study. Department of Geography, University of Manitoba, 1974.