Redeemer library possess an (almost) complete set of Aquinas's Summa Theologiae. See below for links.
NB: Combined: volumes 45 and 46 are the only volumes Redeemer doesn't have
Peter Turkstra Library, Redeemer University , 777 Garner Road East, Ancaster, ON, L9K 1J4, Canada Circulation Desk Telephone: 905.648.2139 ext. 4266, Email: library@redeemer.ca