Columbia subject headings:
Harvard subject headings:
Nationalism--Nigeria
Nigeria--History--20th century.
Nigeria--Politics and government--20th century.
Yoruba (African people)--Politics and government.
Yoruba (African people)--Race identity.
Princeton subject headings:
Nigeria--History--20th century.
Nigeria--Politics and government.
Yoruba (African people)--Ethnic identity.
Yoruba (African people)--Politics and government.