The abundance and distribution of waterfowl within Milford Haven after the Sea Empress oil spill : interim report, January 1997 /
Armitage, M. J. S.
British Trust for Ornithology.
Countryside Council for Wales
Sea Empress Environmental Evaluation Committee
Thetford : British Trust for Ornithology,
2005
"A report of work carried out by the British Trust for Ornithology under contract to the Countryside Council for Wales and the Sea Emrpess Environmental Evaluation Committee"--T.p. verso.
References, p. 19