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  1. 21
    Earth benefits from NASA research and technology : life sciences applications /
    Published 1991
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    Government Document Microform Book
  2. 22
    Search for the universal ancestors /
    Published 1985
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    Government Document Microform Book
  3. 23
    Data base development and research and editorial support : final report.
    Published 1988
    Government Document Microform Book
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