Columbia subject headings:
Age distribution (Demography)
Age distribution (Demography)--Great Britain.
Age distribution (Demography)--Israel.
Age distribution (Demography)--Japan.
Age distribution (Demography)--United States.
Harvard subject headings:
Age distribution (Demography)
Age distribution (Demography)--Great Britain.
Age distribution (Demography)--Israel.
Age distribution (Demography)--Japan.
Age distribution (Demography)--United States.
Princeton subject headings:
Age distribution (Demography)
Age distribution (Demography)--Great Britain.
Age distribution (Demography)--Israel.
Age distribution (Demography)--Japan.
Age distribution (Demography)--United States.