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1
Engineering Philadelphia : the Sellers family and the industrial metropolis /
Published 2013“…Philadelphia (Pa.) Economic conditions 19th century.…”
An electronic book accessible through the World Wide Web; click to view
Electronic eBook -
2
Engineering Philadelphia : the Sellers family and the industrial metropolis /
Published 2013“…Philadelphia (Pa.) Economic conditions 19th century.…”
An electronic book accessible through the World Wide Web; click to view
Electronic eBook