Columbia subject headings:
Commercial policy--Environmental aspects--Congresses.
Environmental policy--Case studies--Congresses.
International trade--Environmental aspects--Congresses.
Harvard subject headings:
Commercial policy--Environmental aspects--Congresses.
Environmental policy--Case studies--Congresses.
International trade--Environmental aspects--Congresses.
Manufacturing processes--Environmental aspects--Case studies--Congresses.
Manufacturing processes--Environmental aspects--Congresses.
Production management--Environmental aspects--Case studies--Congresses.
Princeton subject headings:
Commercial policy--Environmental aspects--Congresses.
International trade--Environmental aspects--Congresses.
Manufacturing processes--Environmental aspects--Case studies--Congresses.
Manufacturing processes--Environmental aspects--Congresses.
Production management--Environmental aspects--Case studies--Congresses.