Columbia subject headings:
Emergency management--Great Britain--Case studies.
Wales--Economic conditions--Case studies.
Wales--Environmental conditions--Case studies.
Wales--Social conditions--Case studies.
Harvard subject headings:
Aberfan (Wales)--History.
Coal mine accidents--Wales--Aberfan.
Disaster relief--Wales--Aberfan.
Spoil bank failures--Wales--Aberfan.
Tort liability of corporations--Wales--Aberfan.
Wales--Economic conditions--Case studies.
Wales--Environmental conditions--Case studies.
Wales--Social conditions--Case studies.
Princeton subject headings:
Aberfan (Wales)--History.
Case studies.
Emergency management--Great Britain--Case studies.
Wales--Economic conditions--Case studies.
Wales--Environmental conditions--Case studies.
Wales--Social conditions--Case studies.