Columbia subject headings:
Environmental policy.
Industries--Environmental aspects--Case studies.
Industries--Environmental aspects.
Pollution prevention--Case studies.
Pollution prevention--International cooperation.
Pollution prevention.
Harvard subject headings:
Environmental policy.
Factory and trade waste--Governmental policy.
Industries--Environmental aspects
Industries--Environmental aspects--Case studies.
Pollution prevention--Case studies.
Pollution prevention--International cooperation.
Pollution prevention.
Princeton subject headings: