A risk assessment for the gwyniad (Coregonus lavaretus) population in Llyn Tegid : final report ; a collaborative project between the Countryside Council for Wales and Environment Agency Wales /
Winfield, Ian J.,1959-
Environment Agency Wales.
Countryside Council for Wales.
[Bangor] : Countryside Council for Wales,
2001.
Includes bibliographical references.
Yn cynnwys llyfryddiaeth = Includes bibliography.
Coregonus lavaretus