Columbia subject headings:
Drainage laws--Great Britain.
Irrigation laws--Australia.
Irrigation laws--Canada.
Irrigation laws--India.
Irrigation laws--South Africa.
Reclamation of land--Australia.
Reclamation of land--Canada.
Reclamation of land--Great Britain.
Reclamation of land--India.
Reclamation of land--South Africa.
Harvard subject headings:
Drainage laws--Great Britain.
Irrigation laws--Australia.
Irrigation laws--Canada.
Irrigation laws--India.
Irrigation laws--South Africa.
Reclamation of land--Australia.
Reclamation of land--Canada.
Reclamation of land--Great Britain
Reclamation of land--India
Reclamation of land--South Africa.
Princeton subject headings: