Day, R. A., & Underwood, A. (1986). Quantitative analysis (5th ed.). Prentice Hall.
Chicago Style aipamenaDay, R. A., and A.L Underwood. Quantitative Analysis. 5th ed. Englewood Cliffs, N.J: Prentice Hall, 1986.
MLA aipamenaDay, R. A., and A.L Underwood. Quantitative Analysis. 5th ed. Prentice Hall, 1986.
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