Bartley, W. W. (1971). Morality and religion. Macmillan St. Martin's Press.
Dyfyniad Arddull ChicagoBartley, William Warren. Morality and Religion. [London] [New York]: Macmillan St. Martin's Press, 1971.
Dyfyniad MLABartley, William Warren. Morality and Religion. Macmillan St. Martin's Press, 1971.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.