Columbia subject headings:
Environmental management--International cooperation.
Marine debris--Cleanup--China.
Marine debris--Cleanup--Japan.
Marine debris--Cleanup--Korea (South)
Harvard subject headings:
Marine debris--Law and legislation--China.
Marine debris--Law and legislation--Japan.
Marine debris--Law and legislation--Korea (South)
Marine debris--Law and legislation.
Marine pollution--Law and legislation
Marine pollution--Law and legislation--China.
Marine pollution--Law and legislation--Japan.
Marine pollution--Law and legislation--Korea (South)
Princeton subject headings: