Columbia subject headings:
Death--Religious aspects.
Eschatology, Greco-Roman.
Greece--Religion.
Purgatory.
Rome--Religion.
Harvard subject headings:
Death--Religious aspects
Eschatology, Greco-Roman.
Greece--Religion.
Purgatory
Rome--Religion.
Princeton subject headings:
Death--Religious aspects.
Eschatology, Greco-Roman.
Greece--Religion.
Purgatory.
Rome--Religion.