Columbia subject headings:
Economic development--Social aspects--Congresses.
Industrial sociology--Congresses.
Work--Social aspects--Congresses.
Harvard subject headings:
Democratization--Congresses.
Economic development--Social aspects--Congresses
Economic history--21st century--Congresses.
Industrial sociology--Congresses.
Social problems--Congresses
Work--Social aspects--Congresses.
Princeton subject headings: