Columbia subject headings:
Ebro River Valley (Spain)--Antiquities, Roman.
Inscriptions, Latin--Spain--Ebro River Valley.
Irrigation laws--Spain--Ebro River Valley--History.
Water (Roman law)
Harvard subject headings:
Agricultural laws and legislation (Roman law)
Civil procedure (Roman law)--History--Sources.
Irrigation laws--Spain.
Lex rivi Hiberiensis.
Spain--Antiquities, Roman
Princeton subject headings:
Ebro River Valley (Spain)--Antiquities, Roman.
Inscriptions, Latin--Spain--Ebro River Valley.
Irrigation laws--Spain--Ebro River Valley--History.
Water (Roman law)