Douthwaite, R. (1999). The ecology of money. Totnes, UK: Green books for the Schumacher Society.
Dyfyniad Arddull ChicagoDouthwaite, Richard. The Ecology of Money. Totnes, UK: Green books for the Schumacher Society, 1999.
Dyfyniad MLADouthwaite, Richard. The Ecology of Money. Totnes, UK: Green books for the Schumacher Society, 1999.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.