Columbia subject headings:
Christian union--Congresses.
Ecumenical movement--Congresses.
World Council of Churches. Assembly (7th : 1991 : Canberra, A.C.T.)
Harvard subject headings:
Christian union--Congresses.
Ecumenical movement--Congresses.
World Council of Churches. Assembly (7th : 1991 : Canberra, A.C.T.)
Princeton subject headings: