1. Firth of Forth Winter Seaduck Survey 1974–1975;Campbell,1975
2. Goldeneye Bucephela clangula feeding close to sewer outfalls in winter;Campbell;Wildfowl,1977
3. Campbell, L. H. (in press). Diurnal and tidal behaviour patterns of eiders wintering at Leith. Wildfowl.
4. The quality of the Forth estuary (2);Covill,1972
5. Wintering seaducks off the east coast of Scotland;Milne;Bird Study,1973