Dyfyniad APA

World Bank, International Telecommunication Union, & ebrary, Inc. (2012). The little data book on information and communication technology 2012. World Bank.

Dyfyniad Arddull Chicago

World Bank, International Telecommunication Union, and Inc ebrary. The Little Data Book on Information and Communication Technology 2012. Washington, D.C.: World Bank, 2012.

Dyfyniad MLA

World Bank, et al. The Little Data Book on Information and Communication Technology 2012. World Bank, 2012.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.