Wallis, K. F. (1973). Introductory econometrics. Aldine Publishing Company.
Tohutoru Kātū Chicago (17th ed.)Wallis, Kenneth F. Introductory Econometrics. Chicago: Aldine Publishing Company, 1973.
Tohutoro MLA (9th ed.)Wallis, Kenneth F. Introductory Econometrics. Aldine Publishing Company, 1973.
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