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Lua i Stíl Chicago (17ú heag.)Strøm, Steinar. Econometrics and Economic Theory in the 20th Century: The Ragnar Frisch Centennial Symposium. Cambridge, England ; New York, N.Y.: Cambridge University Press, 1998.
Lua MLA (8ú heag.)Strøm, Steinar. Econometrics and Economic Theory in the 20th Century: The Ragnar Frisch Centennial Symposium. Cambridge University Press, 1998.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.