Barbour, I. G. Nature, human nature, and god. Fortress press.
Dyfyniad Arddull ChicagoBarbour, Ian G. Nature, Human Nature, and God. Minnepolis: Fortress press.
Dyfyniad MLABarbour, Ian G. Nature, Human Nature, and God. Fortress press.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.