1.
David Rittenhouse : Astronomer Patriot, 1732-1796
by Ford, Edward, Rittenhouse, ...
ISBN: 9781258044923
List Price: $46.95
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On the Igneous and Pyroclastic Rocks of the Berwyn Hills (North Wales)
by Cope, Thomas Henry D. 1913,...
ISBN: 9781371976859
List Price: $12.95
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On the Igneous and Pyroclastic Rocks of the Berwyn Hills (North Wales)
by Cope, Thomas Henry D. 1913,...
ISBN: 9781371976880
List Price: $22.95
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David Rittenhouse : Astronomer-Patriot, 1732-1796
by Ford, Edward, Cope, Thomas D.
ISBN: 9781512811605
List Price: $79.95