God and the hierarchy of being according to st Thomas Aquinas : a study of the role of the hierarchy of being in Questions 2-13 of the prima pars of the Summa Theologiae / Joseph Murphy. - Murphy, Joseph A. (OLS)http://pul/name/74845 ([s.n.], 2008)
Excerpta ex Diss. ad Doctoratum in Theologia--Pontificia Universitas Gregoriana, 2008.
In testa al front.:Pontifical Gregorian University. Faculty of Theology.

Tasso / Luigi Tonelli . - Tonelli, Luigi, 1890-1939. (OLS)http://pul/name/9610 (G.B. Paravia & C., 1935)