Citation: Cf. Mason et Jr. Ratford, PCB CONGENERS IN TISSUES OF EUROPEAN OTTER (LUTRA-LUTRA), Bulletin of environmental contamination and toxicology, 53(4), 1994, pp. 548-554
Citation: Cf. Mason et Wm. Osullivan, FURTHER OBSERVATIONS ON PCB AND ORGANOCHLORINE PESTICIDE-RESIDUES IN IRISH OTTERS LUTRA-LUTRA, Biology and environment, 93B(3), 1993, pp. 187-188
Citation: Cf. Mason, PCB AND ORGANOCHLORINE PESTICIDE-RESIDUES IN A SAMPLE OF OTTER (LUTRA-LUTRA) SPRAINTS FROM NORTHERN-IRELAND, Biology and environment, 93B(2), 1993, pp. 111-112
Citation: Wm. Osullivan et al., ORGANOCHLORINE PESTICIDE-RESIDUES AND PCBS IN OTTER SPRAINTS FROM SOUTHERN IRELAND, Biology and environment, 93B(1), 1993, pp. 55-57
Citation: Cf. Mason et Sm. Macdonald, IMPACT OF ORGANOCHLORINE PESTICIDE-RESIDUES AND PCBS ON OTTERS (LUTRA-LUTRA) - A STUDY FROM WESTERN BRITAIN, Science of the total environment, 138(1-3), 1993, pp. 127-145
Citation: Cf. Mason et Sm. Macdonald, IMPACT OF ORGANOCHLORINE PESTICIDE-RESIDUES AND PCBS ON OTTERS (LUTRA-LUTRA) IN EASTERN ENGLAND, Science of the total environment, 138(1-3), 1993, pp. 147-160
Citation: Cf. Mason et Ab. Madsen, ORGANOCHLORINE PESTICIDE-RESIDUES AND PCBS IN DANISH OTTERS (LUTRA-LUTRA), Science of the total environment, 133(1-2), 1993, pp. 73-81
Citation: Cf. Mason, ORGANOCHLORINE PESTICIDE-RESIDUES AND PCBS IN EELS (ANGUILLA-ANGUILLA) FROM SOME BRITISH FRESH-WATER REEDBEDS, Chemosphere, 26(12), 1993, pp. 2289-2292