Tractrix Book Discussion
| topics Showing 1-2 of 2 | started by | posts | views |
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| Permalink to AuthorExposure review | R.J. | 1 | 4 | Oct 10, 2009 08:19AM | |
| From where or whom did the Maya get their knowledge of astonomy? | R.J. | 1 | 2 | Sep 24, 2007 02:28PM |
