Columbia subject headings:
Harvard subject headings:
Age distribution (Demography)--Congresses.
Aging--Cross-cultural studies--Congresses.
Aging--Czechoslovakia--Congresses.
Aging--France--Congresses.
Older people--Czechoslovakia--Social conditions--Congresses.
Older people--France--Social conditions--Congresses.
Princeton subject headings:
Age distribution (Demography)--Congresses.
Aging--Cross-cultural studies--Congresses.
Aging--Czechoslovakia--Congresses.
Aging--France--Congresses.
Older people--Czechoslovakia--Social conditions--Congresses.
Older people--France--Social conditions--Congresses.