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Article
D.J. Jefferies Dec 1973Journal of Reproduction and Fertility. Supplement, 19
Article
D.J. Jefferies 1971Mededeling van de Faculteit Landbouwwetenschappen, Rijksuniversiteit Gent, 36(1)Adult Bengalese finches (Lonchura striata)106 of each sex aged 200 to 300 days and of mean bodyweight 14.13 g, were given DDT or DDE in bird-rearing feed; the rest of their diet was millet and canary seed. Groups of 2 to 20 birds, total 102, got[...]
Article
Ian Prestt ; D.J. Jefferies ; N.W. Moore July 1, 1970Environmental Pollution, 1(1)The amounts of polychlorinated biphenyl (PCB) compounds present in the livers and eggs of wild birds in Britain were determined by gas-liquid chromatography. Most of the 559 specimens came from predatory birds obtained between April 1966 and Aug[...]
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Ian Prestt ; D.J. Jefferies 09/1969Bird Study, 16(3)
Article
D.J. Jefferies ; I. Prestt 1966British Birds, 59
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D.J. Jefferies 1964Hydrobiologia 25 p457-488
