QUAESTIONES DISPUTATAE Volumen I DE VERITATE
S. Thomae aquinatis 

Cura et studio P. Fr. Raymundi Spiazzi, O.P. 
Editio IX revisa 
Marietti -Turin -1949
Text in latin
600 pages

ex library

The Quaestiones disputatae de veritate (Disputed Questions on Truth) is a major collection by Saint Thomas Aquinas written between 1256 and 1259.
The work contains 29 questions addressing truth, knowledge, goodness, and will. It is divided into two main volumes by the publisher Marietti: 
This is the Volume 1: Questions 1 to 10. It deals with the nature of truth, the mind, the divine idea, science (of Christ and angels), and conscience.