Roper, W. E. (2000). Managing technology in the iron and steel industry. Center for Integrative and Development Studies and the Technology Management Center.
Chicago-viite (17. p.)Roper, William E. Managing Technology in the Iron and Steel Industry. University of the Philippines: Center for Integrative and Development Studies and the Technology Management Center, 2000.
MLA-viite (9. p.)Roper, William E. Managing Technology in the Iron and Steel Industry. Center for Integrative and Development Studies and the Technology Management Center, 2000.
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