Lua APA (7ú heag.)
Clifton, E. V., & Romero-Barrutieta, A. (2006). Institutions v. geography: Sub-national evidence from the United States. International Monetary Fund.
Lua i Stíl Chicago (17ú heag.)
Clifton, Eric V., agus Alma Romero-Barrutieta. Institutions V. Geography: Sub-national Evidence from the United States. [Washington, D.C.]: International Monetary Fund, 2006.
Lua MLA (9ú heag.)
Clifton, Eric V., agus Alma Romero-Barrutieta. Institutions V. Geography: Sub-national Evidence from the United States. International Monetary Fund, 2006.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.