Columbia subject headings:
Convents--Germany--Rhineland--Guidebooks.
Convents--Germany--Westphalia--Guidebooks.
Harvard subject headings:
Church architecture--Germany--Rhineland--Guidebooks.
Convents--Germany--Rhineland--Guidebooks.
Monasticism and religious orders for women--Germany--Rhineland--Guidebooks.
Rhineland (Germany)--Religious life and customs--Guidebooks.
Princeton subject headings:
Convents--Germany--Rhineland--Guidebooks.
Convents--Germany--Westphalia--Guidebooks.
Guidebooks.