[Piauí (Brazil) publications].
Published: 1979
Language: por
Subjects: Babassu products industry -- Brazil -- Piauí.; Piauí (Brazil) -- Economic conditions.; Piauí (Brazil) -- Economic conditions -- Statistics.; Parnaíba (Piauí, Brazil) -- Social conditions.; Parnaíba (Piauí, Brazil) -- Economic conditions.
Notes: Includes municipal-level materials.