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Toward competition in local telephony / by: Sidak, J. Gregory.; Baumol, William J. (書目-語言資料,印刷品)

Competition and regulation in telecommunications : = examining Germany and America / by: Engel, Christoph, (1956-); Knieps, Gunter.; Sidak, J. Gregory. (書目-語言資料,印刷品)