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Universities Federation for Animal Welfare‎(2012)‎

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By Butterworth A   Knowles TG   Whittington P   Matthews L   Rogers A   Bagshaw CS   in Animal Welfare

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Universities Federation for Animal Welfare‎(2007)‎

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By Crawford R.J.M.   Shannon L.J.   Whittington P.A.   Murison G.   in South African Journal of Marine Science

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NISC Pty Ltd‎(2000)‎

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Taylor & Francis Ltd‎(2003)‎

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