Columbia subject headings:
Evangelische Kirche im Rheinland--Societies, etc.
Evangelistic work.
Gustav Adolf-Verein.
Gustav-Adolf-Werk.
Harvard subject headings:
Evangelische Kirche im Rheinland--Societies, etc.
Evangelistic work--Germany--Rhine Province.
Gustav-Adolf-Werk.
Rhine Province (Germany)--Church history.
Princeton subject headings: