Theil, H. (1971). Principles of econometrics. Wiley.
Lua i Stíl Chicago (17ú heag.)Theil, Henri. Principles of Econometrics. New York: Wiley, 1971.
Lua MLA (9ú heag.)Theil, Henri. Principles of Econometrics. Wiley, 1971.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.