Demant, V. A. (1966). The idea of a natural order: With an essay on modern asceticism. Fortress.
Dyfyniad Arddull ChicagoDemant, Vigo Auguste. The Idea of a Natural Order: With an Essay on Modern Asceticism. Philadelphia: Fortress, 1966.
Dyfyniad MLADemant, Vigo Auguste. The Idea of a Natural Order: With an Essay on Modern Asceticism. Fortress, 1966.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.