Columbia subject headings:
Folk literature, African--History and criticism.
Oral tradition--Africa.
Harvard subject headings:
Folk literature, African--History and criticism.
Folk literature, Nigerian--History and criticism.
Oral tradition--Africa.
Oral tradition--Nigeria.
Princeton subject headings:
Folk literature, African--History and criticism.
Folk literature, Nigerian--History and criticism.
Oral tradition--Africa.
Oral tradition--Nigeria.