Columbia subject headings:
Political science--Philosophy--Early works to 1800.
Thōmas, Magistros, active 1310-1327.
Harvard subject headings:
Political science--Philosophy--Early works to 1800.
Thōmas, Magistros, active 1310-1327
Princeton subject headings:
Political science--Philosophy--Early works to 1800.
Thōmas, Magistros, active 1310-1327.