Columbia subject headings:
Harvard subject headings:
Estonia--Population--Statistics--Periodicals.
Estonia--Statistics, Vital--Periodicals.
Latvia--Population--Statistics--Periodicals.
Latvia--Statistics, Vital--Periodicals.
Lithuania--Population--Statistics--Periodicals.
Lithuania--Statistics, Vital--Periodicals.
Princeton subject headings:
Estonia--Population--Statistics--Periodicals.
Estonia--Statistics, Vital--Periodicals.
Latvia--Population--Statistics--Periodicals.
Latvia--Statistics, Vital--Periodicals.
Lithuania--Population--Statistics--Periodicals.
Lithuania--Statistics, Vital--Periodicals.