1. Salmonellae and Edwardsiella tarda in gull faeces: a source of contamination in fish processing plants;Berg;Appl. Microbiol.,1972
2. Membrane filtration techniques for the isolation from water of coli-aerogenes, Escherichia coli. faecal streptococci, Clostridium perfringens, Actinomycetes and microfungi;Burman,1969
3. Gulls nesting on buildings in Britain and Ireland;Cramp;Br. Birds,1971
4. The Seabirds of Britain and Ireland;Cramp,1974
5. Ecology of Refuse Tips;Darlington,1969