Columbia subject headings:
Names, Personal--Estonia--Tallinn.
Names, Personal--German.
Names, Personal--Latvia--Rīga.
Harvard subject headings:
Names, Personal--Estonia--Tallinn.
Names, Personal--German
Names, Personal--Latvia--Rīga.
Princeton subject headings:
Names, Personal--Estonia--Tallinn.
Names, Personal--German.
Names, Personal--Latvia--Riga.