Gilder, G. (2012). Wealth and Poverty. Partridge.
Lua i Stíl Chicago (17ú heag.)Gilder, George. Wealth and Poverty. Delhi: Partridge, 2012.
Lua MLA (9ú heag.)Gilder, George. Wealth and Poverty. Partridge, 2012.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.