Columbia subject headings:
Competition, International--Congresses.
Conservation of natural resources--Congresses.
Economic development--Environmental aspects--Congresses.
Engineering ethics--Congresses.
Environmental engineering--Technological innovations--Study and teaching (Higher)--Congresses.
Environmental protection--Congresses.
Human ecology--Congresses.
Nature--Effect of human beings on--Congresses.
Risk management--Study and teaching (Higher)--Congresses.
Technology--Social aspects--Congresses.
Harvard subject headings:
Princeton subject headings:
Technology--Social aspects--Congresses.