APA-referens (7:e uppl.)

Estache, A., & Gomez-Lobo, A. (2004). The limits to competition in urban bus services in developing countries. World Bank.

Chicago-referens (17:e uppl.)

Estache, Antonio, och Andres Gomez-Lobo. The Limits to Competition in Urban Bus Services in Developing Countries. Washington, D.C: World Bank, 2004.

MLA-referens (9:e uppl.)

Estache, Antonio, och Andres Gomez-Lobo. The Limits to Competition in Urban Bus Services in Developing Countries. World Bank, 2004.