Groebner, D. F. (2005). Business statistics: A decision-making approach. Upper Saddle River, NJ : Prentice Hall.
Lua i Stíl Chicago (17ú heag.)Groebner, David F. Business Statistics: A Decision-making Approach. Upper Saddle River, NJ : Prentice Hall, 2005.
Lua MLA (9ú heag.)Groebner, David F. Business Statistics: A Decision-making Approach. Upper Saddle River, NJ : Prentice Hall, 2005.
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