APA-viite (7. p.)

Clarke, G. R., & Wallsten, S. J. (2002). Universal(ly bad) service: Providing infrastructure services to rural and poor urban consumers. Regulation and Competition Policy, Development Research Group, World Bank.

Chicago-viite (17. p.)

Clarke, George R.G, ja Scott J. Wallsten. Universal(ly Bad) Service: Providing Infrastructure Services to Rural and Poor Urban Consumers. Washington, D.C: Regulation and Competition Policy, Development Research Group, World Bank, 2002.

MLA-viite (9. p.)

Clarke, George R.G, ja Scott J. Wallsten. Universal(ly Bad) Service: Providing Infrastructure Services to Rural and Poor Urban Consumers. Regulation and Competition Policy, Development Research Group, World Bank, 2002.