Columbia subject headings:
Immortality (Philosophy)--Congresses.
Immortality--Congresses.
Immortality--Social aspects--Congresses.
Popular culture--Religious aspects--Congresses.
Harvard subject headings:
Immortality (Philosophy)
Immortality (Philosophy)--Congresses.
Immortality in literature.
Immortality--Congresses.
Immortality--Social aspects--Congresses.
Immortality.
Popular culture--Religious aspects--Congresses.
Princeton subject headings: