Columbia subject headings:
Anambra River Valley (Nigeria)--Antiquities.
Anambra River Valley (Nigeria)--History.
Excavations (Archaeology)--Nigeria.
Igala (African people)--History.
Igbo (African people)--History.
Nigeria, Eastern--Antiquities.
Harvard subject headings:
Anambra River Valley (Nigeria)--Antiquities.
Anambra River Valley (Nigeria)--Ethnic relations.
Igala (African people)--History.
Igbo (African people)--History.
Nigeria--Antiquities.
Princeton subject headings: