Ploeg, F., & Poelhekke, S. (2009). Volatility And The Natural Resource Curse. Oxford University Press.
Lua i Stíl Chicago (17ú heag.)Ploeg, F., agus S. Poelhekke. Volatility And The Natural Resource Curse. Oxford University Press, 2009.
Lua MLA (9ú heag.)Ploeg, F., agus S. Poelhekke. Volatility And The Natural Resource Curse. Oxford University Press, 2009.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.