Columbia subject headings:
Borno State (Nigeria)--Church history.
Christianity--Nigeria--Borno State.
Christianity--Nigeria--Gongola State.
Gongola State (Nigeria)--Church history.
Missions--Nigeria--Borno State.
Missions--Nigeria--Gongola State.
Harvard subject headings:
Borno State (Nigeria)--Church history.
Missions--Nigeria--Borno State.
Princeton subject headings: