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Lua i Stíl Chicago (17ú heag.)"Family Income and Expenditures: Regional Patterns in Family Income (last of a Three-part Series)." Labstat Updates 2011.
Lua MLA (9ú heag.)"Family Income and Expenditures: Regional Patterns in Family Income (last of a Three-part Series)." Labstat Updates, 2011.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.