America’s oil industry. The tough get going

Cita: 

The Economist [2015], "America’s oil industry. The tough get going", The Economist, London, 24 de enero, http://www.economist.com/news/business/21640328-amid-gloom-and-cutbacks-...

Fuente: 
The Economist
Fecha de publicación: 
Sábado, Enero 24, 2015