Increases In Railroad Mileage, Poor's

United States
Annual
Miles

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Source

Organisation:The National Bureau of Economic Research
Website:https://www.nber.org
Publication:Construction
Series:a02082
Download Page:http://www.nber.org/databases/macrohistory/contents/chapter02.html
Download Url:http://www.nber.org/databases/macrohistory/data/02/a02082.db
Period:1831 - 1911
Date Accessed: Saturday, February 8, 2020