Columbia subject headings:
Harvard subject headings:
Agriculture--Spain--Asturias--History.
Asturias (Spain)--History
Spain--History--711-1516.
Princeton subject headings:
Asturias (Spain)--Social conditions--History.
Land tenure--Spain--Asturias--History.
Land use--Spain--Asturias--History.
Peasants--Spain--Asturias--History.
Rural population--Spain--Asturias--History.
Sociology, Rural--Spain--Asturias--History.
Traditional farming--Spain--Asturias--History.