Columbia subject headings:
Harvard subject headings:
Families--Congresses.
Families--Religious aspects--Christianity--Congresses.
Families--Religious aspects--Judaism--Congresses.
Jewish families--Congresses.
Jewish families--Study and teaching--Germany.
Princeton subject headings:
Families--Congresses.
Families--Religious aspects--Christianity--Congresses.
Families--Religious aspects--Judaism--Congresses.