Columbia subject headings:
Marriage--Religious aspects--Christianity--Congresses.
Pietism--Congresses.
Sex--Religious aspects--Christianity--Congresses.
Harvard subject headings:
Love--Religious aspects--Christianity--Congresses.
Marriage--Religious aspects--Christianity--Congresses.
Pietism--Congresses.
Sex--Religious aspects--Christianity--Congresses.
Sexual ethics--Religious aspects--Congresses.
Princeton subject headings: