Columbia subject headings:
Harvard subject headings:
Hazardous substances--European Union countries--Classification.
Hazardous substances--European Union countries--Packaging.
Hazardous substances--Labeling--European Union countries.
Hazardous substances--Labeling--Law and legislation--European Union countries.
Hazardous substances--Packaging--European Union countries.
Hazardous substances--Packaging--Law and legislation--European Union countries.
Princeton subject headings:
Hazardous substances--Classification--European Union countries.
Hazardous substances--Labeling--Law and legislation--European Union countries.
Hazardous substances--Packaging--Law and legislation--European Union countries.