Columbia subject headings:
Assyrian Church of the East--History--Encyclopedias.
Church history.
Eastern churches--History--Encyclopedias.
Monasteries--History--Encyclopedias.
Harvard subject headings:
Assyrian Church of the East--History--Encyclopedias.
Church history.
Eastern churches--History--Encyclopedias.
Monasteries--History--Encyclopedias.
Princeton subject headings:
Assyrian Church of the East--History--Encyclopedias.
Church history.
Eastern churches--History--Encyclopedias.
Encyclopedias.
Monasteries--History--Encyclopedias.