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    Impact! the threat of comets and asteroids / 由 Verschuur, Gerrit L., 1937-

    出版 1996
    An electronic book accessible through the World Wide Web; click to view
    电子 电子书

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  2. 2
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    Near-earth object surveys and hazard mitigation strategies interim report /

    出版 2009
    An electronic book accessible through the World Wide Web; click to view
    电子 电子书

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    Defending planet Earth near-Earth object surveys and hazard mitigation strategies /

    出版 2010
    An electronic book accessible through the World Wide Web; click to view
    电子 电子书

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    Meteorites and asteroids classification, geology, and exploration /

    出版 2012
    An electronic book accessible through the World Wide Web; click to view
    电子 电子书

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