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  1. 1
    The Comet Halley handbook : an observer's guide /
    by Yeomans, Donald K.
    Published 1983
    “...NASA, Jet Propulsion Laboratory, California Institute of Technology ; For sale by Supt. of Docs...”
    Government Document Book
  2. 2
    The Comet Halley handbook : an observer's guide /
    by Yeomans, Donald K.
    Published 1983
    “...NASA, Jet Propulsion Laboratory, California Institute of Technology ; For sale by Supt. of Docs...”
    Get full text
    Government Document eBook
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