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The diffusion of technological change in the Pennsylvania pig iron industry, 1850-1870
Walsh, William David, (1975)
The productive edge : how U.S. industries are pointing the way to a new era of economic growth
Lester, Richard K., (1998)
Technological integration and fragmented labour market structures : the decline and restructuring of the US steel integrated sector
Konzelmann Smith, Suzanne, (1991)