Columbia subject headings:
Informal sector (Economics)--Burkina Faso--Ouagadougou.
Informal sector (Economics)--Burkina Faso.
Harvard subject headings:
Informal sector (Economics)--Burkina Faso--Ouagadougou.
Informal sector (Economics)--Burkina Faso.
Ouagadougou (Burkina Faso)--Social conditions.
Princeton subject headings:
Informal sector (Economics)--Burkina-Faso--Ouagadougou.
Informal sector (Economics)--Burkina-Faso.