Columbia subject headings:
Economics--Religious aspects--Christianity--Early works to 1800.
Olivi, Pierre Jean, 1248 or 1249-1298. De emptionibus et venditionibus, de usuris, de restitutionibus.
Harvard subject headings:
Commerce--Early works to 1800
Olivi, Pierre Jean, 1248 or 1249-1298. De emptionibus et venditionibus, de usuris, de restitutionibus.
Princeton subject headings: