conference on research in income and wealth. (1957). regional income: Studies in income and wealth. Princeton university press.
Lua i Stíl Chicago (17ú heag.)conference on research in income and wealth. Regional Income: Studies in Income and Wealth. new york: Princeton university press, 1957.
Lua MLA (9ú heag.)conference on research in income and wealth. Regional Income: Studies in Income and Wealth. Princeton university press, 1957.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.