Columbia subject headings:
Ecosystem management--Congresses.
Environmental geology--Congresses.
Harvard subject headings:
Ecology
Endangered ecosystems
Environmental geology.
Environmental monitoring.
Environmental sciences
Environmental toxicology
Geology
Mines and mineral resources
Nature--Effect of human beings on
Sustainable development.
Princeton subject headings:
Environmental geology.
Environmental monitoring.
Nature--Effect of human beings on.
Sustainable development.