Columbia subject headings:
Harvard subject headings:
Mineral industries--Environmental aspects--Germany--Congresses.
Mineral industries--Environmental aspects--Latin America--Congresses.
Mining engineering--Germany--Congresses.
Mining engineering--Latin America--Congresses.
Sustainable development--Germany--Congresses.
Sustainable development--Latin America--Congresses
Princeton subject headings:
Mineral industries--Environmental aspects--Germany--Congresses.
Mineral industries--Environmental aspects--Latin America--Congresses.
Mining engineering--Germany--Congresses.
Mining engineering--Latin America--Congresses.
Sustainable development--Germany--Congresses.
Sustainable development--Latin America--Congresses.