Sidak, J. Gregory.

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: Sidak, J. Gregory.; Knieps, Gunter.; Engel, Christoph, (1956-) (書目-語言資料,印刷品)