Columbia subject headings:
Harvard subject headings:
Ethnopsychology--Guadiana River Valley (Spain and Portugal)
National characteristics, Portuguese.
Nationalism--Guadiana River Valley (Spain and Portugal)
Princeton subject headings:
Borderlands--Portugal.
Borderlands--Spain.
Ethnopsychology--Guadiana River Valley (Spain and Portugal).
Guadiana River Valley (Spain and Portugal)--Civilization.
National characteristics, Portuguese.
Nationalism--Guadiana River Valley (Spain and Portugal).