John Paul II, P. (1981). Toward a philosophy of praxis: An anthology. Crossroad.
Dyfyniad Arddull ChicagoJohn Paul II, Pope. Toward a Philosophy of Praxis: An Anthology. New York: Crossroad, 1981.
Dyfyniad MLAJohn Paul II, Pope. Toward a Philosophy of Praxis: An Anthology. Crossroad, 1981.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.