Yearbook of statistics : telecommunication services : chronological time series
著者
書誌事項
Yearbook of statistics : telecommunication services : chronological time series
International Telecommunication Union, 1997-
- 1986-1995 (1986-1995)-
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注記
Other title information varies: Yearbook of statistics : telecommunication/ICT indicators : chronological time series, <1999-2008 (1999/2008)->
Statistical tables also included in: World telecommunication indicators database