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  1. 1

    Guide for the care and use of laboratory animals /

    Publicat 2011
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    National Academies Press
    Llibre
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    Improving fish stock assessments

    Publicat 1998
    An electronic book accessible through the World Wide Web; click to view
    Electrònic eBook
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    Science and the national parks

    Publicat 1992
    An electronic book accessible through the World Wide Web; click to view
    Electrònic eBook