Pfaffenberger, R. C., & Patterson, J. H. (1987). Statistical methods for business and economics (3rd ed.). R. D. Irwin.
Chicago Style (17. basım) AtıfPfaffenberger, Roger C., ve James Herbert Patterson. Statistical Methods for Business and Economics. 3rd ed. Homewood, Ill: R. D. Irwin, 1987.
MLA (9th ed.) AtıfPfaffenberger, Roger C., ve James Herbert Patterson. Statistical Methods for Business and Economics. 3rd ed. R. D. Irwin, 1987.
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