Columbia subject headings:
Economic development--Environmental aspects--Congresses.
Industrial hygiene--Congresses.
Public health--Developing countries--Congresses.
Harvard subject headings:
Economic development--Environmental aspects--Congresses
Environmental health--Congresses
Industrial hygiene--Congresses
Industries--congresses.
Public health--Developing countries--Congresses.
Princeton subject headings:
Economic development--Environmental aspects--Congresses.
Environmental health--Congresses.
Industrial hygiene--Congresses.
Public health--Developing countries--Congresses.