Triplett, J. E. (1971). The theory of hedonic quality measurement and its use in price indexes. U.S. Bureau of Labor Statistics; for sale by the Supt. of Docs., U.S. Govt. Print. Off..
Lua i Stíl Chicago (17ú heag.)Triplett, Jack E. The Theory of Hedonic Quality Measurement and Its Use in Price Indexes. Washington: U.S. Bureau of Labor Statistics; for sale by the Supt. of Docs., U.S. Govt. Print. Off., 1971.
Lua MLA (8ú heag.)Triplett, Jack E. The Theory of Hedonic Quality Measurement and Its Use in Price Indexes. U.S. Bureau of Labor Statistics; for sale by the Supt. of Docs., U.S. Govt. Print. Off., 1971.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.