Telecoms equipment. Engaged tone

Cita: 

The Economist [2015], "Telecoms equipment. Engaged tone", The Economist, London, 18 de abril, http://www.economist.com/news/business/21648613-nokia-alcatel-merger-rep...

Fuente: 
The Economist
Fecha de publicación: 
Sábado, Abril 18, 2015