Berenson, M. L., & Levine, D. M. (1993). Statistics for business and economics (2nd ed.). Prentice Hall.
Lua i Stíl Chicago (17ú heag.)Berenson, Mark L., agus David M. Levine. Statistics for Business and Economics. 2nd ed. Englewood Cliffs, N.J.: Prentice Hall, 1993.
Lua MLA (9ú heag.)Berenson, Mark L., agus David M. Levine. Statistics for Business and Economics. 2nd ed. Prentice Hall, 1993.
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