Elifson, K. W., Haber, A., & Runyon, R. P. (1998). Fundamentals of social statistics (3rd ed.). McGraw Hill.
Lua i Stíl Chicago (17ú heag.)Elifson, Kirk W., Audrey Haber, agus Richard P. Runyon. Fundamentals of Social Statistics. 3rd ed. Boston: McGraw Hill, 1998.
Lua MLA (9ú heag.)Elifson, Kirk W., et al. Fundamentals of Social Statistics. 3rd ed. McGraw Hill, 1998.
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