Columbia subject headings:
Jews--Poland--Tykocin--History--Sources.
Tykocin (Poland)--Ethnic relations--Sources.
Harvard subject headings:
Jews--Poland--Tykocin--History--Sources.
Tykocin (Poland)--Ethnic relations--Sources.
Princeton subject headings:
Jews--Poland--Tykocin--History--Sources.
Tykocin (Poland)--Ethnic relations--Sources.