Butler, J. D. (1957). Four philosophies and their practice in education and religion (Rev. ed.). Harper.
Dyfyniad Arddull ChicagoButler, James Donald. Four Philosophies and Their Practice in Education and Religion. Rev. ed. New York: Harper, 1957.
Dyfyniad MLAButler, James Donald. Four Philosophies and Their Practice in Education and Religion. Rev. ed. Harper, 1957.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.