World Bank, International Telecommunication Union, & ebrary, Inc. (2012). The little data book on information and communication technology 2012. World Bank.
Citación estilo ChicagoWorld Bank, International Telecommunication Union, and Inc ebrary. The Little Data Book on Information and Communication Technology 2012. Washington, D.C.: World Bank, 2012.
Cita MLAWorld Bank, et al. The Little Data Book on Information and Communication Technology 2012. World Bank, 2012.
Warning: These citations may not always be 100% accurate.