Showing 1 - 2 results of 2 for search 'Campbell, Paul Douglas', query time: 0.06s Refine Results
  1. 1
    The Humboldt celt : the key to the lost Olmec world /
    by Campbell, Paul Douglas
    Published 1992
    Book
  2. 2
    Astronomy and the Maya calendar correlation /
    by Campbell, Paul Douglas
    Published 1992
    Book
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