Day, R. A., & Underwood, A. L. Quantitative analysis (Third Edition.). Prentice-Hall.
Chicago Style (17th ed.) CitationDay, Reuben Alexander, and Arthur Louis Underwood. Quantitative Analysis. Third Edition. Englewood Cliffs: Prentice-Hall.
MLA (9th ed.) CitationDay, Reuben Alexander, and Arthur Louis Underwood. Quantitative Analysis. Third Edition. Prentice-Hall.
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