Columbia subject headings:
Clean coal technologies--Great Britain--Congresses.
Clean coal technologies--India--Congresses.
Coal-fired power plants--Environmental aspects--Great Britain--Congresses.
Coal-fired power plants--Environmental aspects--India--Congresses.
Sustainable development--Great Britain--Congresses.
Sustainable development--India--Congresses.
Harvard subject headings:
Clean coal technologies--Great Britain--Congresses.
Clean coal technologies--India--Congresses.
Coal-fired power plants--Environmental aspects--Great Britain--Congresses.
Coal-fired power plants--Environmental aspects--India--Congresses.
Sustainable development--Great Britain--Congresses.
Sustainable development--India--Congresses
Princeton subject headings:
Clean coal technologies--Great Britain--Congresses.
Clean coal technologies--India--Congresses.
Coal-fired power plants--Environmental aspects--Great Britain--Congresses.
Coal-fired power plants--Environmental aspects--India--Congresses.
Sustainable development--Great Britain--Congresses.
Sustainable development--India--Congresses.