Columbia subject headings:
Architects--Spain.
Architecture--Spain--Cuenca mediterranea sur--History--20th century.
Architecture--Spain--Guadalquivir--History--20th century.
Sota, Alejandro de la, 1913-1996.
Harvard subject headings:
Architects--Spain
Architecture--Spain--Cuenca mediterranea sur--20th century.
Architecture--Spain--Guadalquivir--20th century.
Sota, Alejandro de la, 1913-1996
Princeton subject headings:
Agricultural colonies--Spain.
Architecture--Spain--History--20th century.
Instituto Nacional de Colonización (Spain)