Showing 1 - 2 results of 2 for search 'Ruby, Lionel', query time: 0.11s Refine Results
  1. 1
    Logic : an introduction /
    by Ruby, Lionel
    Published 1960
    Book
  2. 2
    The art of making sense ; a guide to logical thinking.
    by Ruby, Lionel
    Published 1968
    Book
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