Gwersi'r Sea Empress / Lessons from the Sea Empress / Neil Caldwell and Clive Morgan.
Caldwell, Neil.
Morgan, Clive.
Institute of Welsh Affairs.
Cardiff : Institute of Welsh Affairs,
c1997.
Teitl clawr = Cover title.
Llyfryddiaeth = Bibliography: p16,16.
Sea Empress (Tanker)
Oil spills
Oil pollution of the sea
Environmental protection