Bluman, A. G. Elementary statistics: A step by step approach (Eleventh edition.).
Cita Chicago (17th ed.)Bluman, Allan G. Elementary Statistics: A Step by Step Approach. Eleventh edition.
Cita MLA (9th ed.)Bluman, Allan G. Elementary Statistics: A Step by Step Approach. Eleventh edition.
Atenció: Aquestes cites poden no estar 100% correctes.