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Tree-Ring Services - dendrochronology applied to date Archaeology and...
Dendrochronology (tree-ring dating) professionally applied to provide precise calendar year dates for live trees, wooden artefacts and historic building timbers. Tree-Ring...
Not Applicable 
$ 8.95
The Heat Is Online
This site, based on the book The Heat Is On, by Ross Gelbspan, (Perseus Books,1997): ยท Lays bare the central drama: the ability of this planet to sustain civilization vs. the...
Not Applicable $ 8.95
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