The new Schaff-Herzog encyclopedia of religious knowledge, embracing Biblical, historical, doctrinal, and practical theology, and Biblical, theological, and ecclesiastical biograph... by Schaff-Herzog

Basic writings of Saint Augustine by Augustine Saint, Bishop of Hippo

Summa theologica by Thomas, Aquinas Saint 1225?-1274

Basic writings of Saint Augustine. by Augustinus, Aurelius, Saint, Bp. of Hippo

Essays and sketches by Newman, John Henry 1801-1890

Basic writings of Saint Augustine by Augustinus, Aurelius Saint, Bp. of Hippo

Introduction to Saint Thomas Aquinas by Thomas Aquinas, Saint 1225n-1274

Scottish journal of theology.

Available for UP System via Cambridge Core.

Magistri Iohannis Hus quodlibet disputationis de quolibet Pragae in Facultate Artium mense Ianuario anni 1411 habitae enchiridion by Hus, Jan 1369?-1415

Basic writings of Saint Thomas Aquinas by Thomas Aquinas, Saint 1225?-1274