Alvarez de Paz and the nature of perfect contemplation. Roma : [s.n.], 1950. ((Excerpta ex Dissertat...O\'Callaghan, Thomas G. <sj>
Alvarez de Paz and the nature of perfect contemplation. Roma : [s.n.], 1950. ((Excerpta ex Dissertatione ad Lauream in Facultate Theologica Pontificiae Universitatis Gregorianae