Columbia subject headings:
Harvard subject headings:
Economic development projects--Brazil--São Francisco River Valley--Congresses.
Rural development--Brazil--São Francisco River Valley--Congresses.
São Francisco River Valley (Minas Gerais-Alagoas and Sergipe, Brazil)--Economic conditions--Congresses.
São Francisco River Valley (Minas Gerais-Alagoas and Sergipe, Brazil)--Social conditions--Congresses.
Princeton subject headings:
Economic development projects--Brazil--São Francisco River Valley--Congresses.
São Francisco River Valley (Minas Gerais-Alagoas and Sergipe, Brazil)--Congresses.
São Francisco River Valley (Minas Gerais-Alagoas and Sergipe, Brazil)--Economic conditions--Congresses.
São Francisco River Valley (Minas Gerais-Alagoas and Sergipe, Brazil)--Social conditions--Congresses.