Columbia subject headings:
Burkina Faso--Economic conditions.
Sustainable agriculture--Burkina Faso--Congresses.
Sustainable development--Burkina Faso--Congresses.
Harvard subject headings:
Burkina Faso--Economic conditions.
Sustainable agriculture--Burkina Faso--Congresses.
Sustainable development--Burkina Faso--Congresses.
Princeton subject headings: