Harberger, A. C. (1974). Taxation and welfare. Little, Brown.
Lua i Stíl Chicago (17ú heag.)Harberger, Arnold C. Taxation and Welfare. Boston: Little, Brown, 1974.
Lua MLA (8ú heag.)Harberger, Arnold C. Taxation and Welfare. Little, Brown, 1974.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.