Kierkegaard, S. (1948). Purity of heart is to will one thing: Spiritual preparation for the office of confession. London: Fontana Books.
Citação norma ChicagoKierkegaard, Søren. Purity of Heart Is to Will One Thing: Spiritual Preparation for the Office of Confession. London: Fontana Books, 1948.
Citação norma MLAKierkegaard, Søren. Purity of Heart Is to Will One Thing: Spiritual Preparation for the Office of Confession. London: Fontana Books, 1948.
Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.