Gallup, J. L., Gaviria, A., & Lora, E. (2003). Is geography destiny?: Lessons from Latin America. Stanford University Press ; World Bank.
Lua i Stíl Chicago (17ú heag.)Gallup, John Luke, Alejandro Gaviria, agus Eduardo Lora. Is Geography Destiny?: Lessons from Latin America. Palo Alto, Calif. : Washington, DC: Stanford University Press ; World Bank, 2003.
Lua MLA (8ú heag.)Gallup, John Luke, et al. Is Geography Destiny?: Lessons from Latin America. Stanford University Press ; World Bank, 2003.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.