Groebner, D. F. (2001). Business statistics: A decision-making approach (5th ed.). Upper Saddle River, NY: Prentice Hall.
Παραπομπή Chicago StyleGroebner, David F. Business Statistics: A Decision-making Approach. 5th ed. Upper Saddle River, NY: Prentice Hall, 2001.
Παραπομπή MLAGroebner, David F. Business Statistics: A Decision-making Approach. 5th ed. Upper Saddle River, NY: Prentice Hall, 2001.
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