Columbia subject headings:
Environmental law--European Union countries.
Environmental law--Great Britain.
Pollution--Law and legislation--European Union countries.
Pollution--Law and legislation--Great Britain.
Harvard subject headings:
Environmental law--European Union countries
Environmental law--Great Britain
Pollution--Law and legislation--European Union countries
Pollution--Law and legislation--Great Britain
Princeton subject headings:
Environmental law--European Union countries.
Environmental law--Great Britain.
Pollution--Law and legislation--European Union countries.
Pollution--Law and legislation--Great Britain.