Scriptum in IV Libros Sententiarum (1252-1257)
Editio nova. Paris 1929-1947. Editors: R.P. Mandonnet and M.F. Moos. This work is the four-volume commentary of St. Thomas Aquinas on the Sentences of Peter Lombard (Stacks, BQ 6856 .C62 1929a)
Summa Contra Gentiles (1259-1264)
Text in Latin can be found in the Leonine edition of Opera Omnia, v. XIII - XV. The set is available in the Religious Studies and Philosophy Library Folios, room 316 (BQ 6822 1882). Also published in a one-volume "manual" edition: Summa Contra Gentiles, 1934, Editio Leonina Manualis (Rm. 314, BQ6862 .A2 1934)
Lectura Romana in Primum Sententiarum Petri Lombardi
This work present once thought lost work of St. Thomas Aquinas, a second commentary on Book I of Peter Lombard's Liber Sententiarum. Edited by Leonard E. Boyle and John F. Boyle. The set is available in the Religious Studies and Philosophy Library Folios, room 316 (B 765.P33 T45 2006).
Summa Theologiae (1265-1273)
This five-volume set consists of the Latin edition of the Primas Pars, Prima Secundae, Secunda Secundae, and Tertia Pars. A index is included in each volume. The fifth volume contains supplementary material to the Teritae Partis (Stacks, BQ 6835 1941).