Bluman, A. G. (1995). Elementary statistics: A step by step approach (2nd.ed.). WCB.
Lua i Stíl Chicago (17ú heag.)Bluman, Allan G. Elementary Statistics: A Step by Step Approach. 2nd.ed. Dubuque: WCB, 1995.
Lua MLA (9ú heag.)Bluman, Allan G. Elementary Statistics: A Step by Step Approach. 2nd.ed. WCB, 1995.
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