Effaith amgylcheddol arllwysiad olew y Sea Empress /
Great Britain.Sea Empress Environmental Evaluation Committee.
[S.l.] : Pwyllgor Gwerthusiad Amgylcheddol Sea Empress,
[1998?]
Teitl clawr = Cover title.
Teitl ychwanegol yn Saesneg = Additional title in English: The environmental impact of the Sea Empress oil spill.
Map tu fewn i'r cloriau = Map on inside covers.
Testun Cymraeg/Saesneg tête-bêche = Welsh/English text tête-bêche.
Sea Empress (Tanker)
Oil spills
Oil pollution of the sea