William of Ockham and the proofs for the existence of God. Roma : [s.n.], 1955. ((Excerpta ex disser...Klocker, P.H.R. <sj>
William of Ockham and the proofs for the existence of God. Roma : [s.n.], 1955. ((Excerpta ex dissertatione ad Lauream in Facultate Philosophica Pontificiae Univeritatis Gregorianae