Columbia subject headings:
Mercury--Toxicology--Japan--Minamata-shi--History.
Photography--Japan--Minamata-shi.
Water--Pollution--Japan--Minamata-shi--History.
Harvard subject headings:
Mercury--Toxicology--Japan--Minamata-shi.
Photography--Japan--Minamata-shi.
Water--Pollution--Japan--Minamata-shi.
Princeton subject headings: