Columbia subject headings:
Families--Nigeria--Congresses.
Women--Nigeria--Social conditions--Congresses.
Harvard subject headings:
Families--Nigeria--Congresses.
Nigeria--Social conditions--Congresses.
Women--Nigeria--Social conditions--Congresses.
Princeton subject headings:
Families--Nigeria--Congresses.
Nigeria--Social conditions--Congresses.
Women--Nigeria--Social conditions--Congresses.