Columbia subject headings:
Church and the world.
Church--Forecasting.
Millennialism.
Mission of the church.
Twenty-first century--Forecasting.
Harvard subject headings:
Christianity--20th century--Congresses.
Christianity--Forecasting--Congresses.
Church and the world.
Church--Forecasting.
Millennialism.
Mission of the church
Twenty-first century--Forecasting.
Princeton subject headings:
Faith--Congresses.