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Dyfyniad APA
Grayson, L. E. (1975). Economics of energy: Readings on environment, resources, and markets. Darwin Press.
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Dyfyniad Arddull Chicago
Grayson, Leslie E. Economics of Energy: Readings on Environment, Resources, and Markets. Princeton, N.J.: Darwin Press, 1975.
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Dyfyniad MLA
Grayson, Leslie E. Economics of Energy: Readings on Environment, Resources, and Markets. Darwin Press, 1975.
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Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.