Of pulleys and ropes and gear: The gravity railroads of the Delaware and Hudson Canal Company and the Pennsylvania Coal Company
Full Title: | Of pulleys and ropes and gear: The gravity railroads of the Delaware and Hudson Canal Company and the Pennsylvania Coal Company |
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ISBN: | 0965954005 |
ISBN13: | 9780965954006 |
List Price: | USD $30.00 |
Authors: |
Ruth, Philip |