Mason, R. D., & Lind, D. A. (1999). Statistical techniques in business and economics (10th ed.). Irwin/McGraw Hill.
Lua i Stíl Chicago (17ú heag.)Mason, Robert Deward, agus Douglas A. Lind. Statistical Techniques in Business and Economics. 10th ed. Boston, Mass: Irwin/McGraw Hill, 1999.
Lua MLA (9ú heag.)Mason, Robert Deward, agus Douglas A. Lind. Statistical Techniques in Business and Economics. 10th ed. Irwin/McGraw Hill, 1999.
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