Dyfyniad APA

Sewell, W. R. D., & Foster, H. D. (1976). Images of Canadian futures: The role of conservation and renewable energy. Environment Canada.

Dyfyniad Arddull Chicago

Sewell, W. R. Derrick, and Harold D. Foster. Images of Canadian Futures: The Role of Conservation and Renewable Energy. Ottawa: Environment Canada, 1976.

Dyfyniad MLA

Sewell, W. R. Derrick, and Harold D. Foster. Images of Canadian Futures: The Role of Conservation and Renewable Energy. Environment Canada, 1976.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.