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  1. 1
    The ability of color defectives to judge signal lights at sea /
    by Kinney, Jo Ann S.
    Published 1979
    Government Document Book
  2. 2
    The X-Chrom lens for correction of color deficiency /
    by Paulson, Helen M.
    Published 1980
    Government Document Book
  3. 3
    Color defectives' judgements of signal lights at sea : a replication /
    by Kinney, Jo Ann S.
    Published 1979
    Government Document Book
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