Columbia subject headings:
Environmental health--Europe, Eastern--History--20th century.
Pollution--Europe, Eastern--Case studies.
Pollution--Europe, Eastern--History--20th century.
Transboundary pollution--Europe, Eastern--History--20th century.
Harvard subject headings:
Princeton subject headings:
Environmental health--Europe, Eastern--History--20th century.
Pollution--Europe, Eastern--Case studies.
Pollution--Europe, Eastern--History--20th century.
Transboundary pollution--Europe, Eastern--History--20th century.