Walpole, R. E. (2007). Scientists & engineers guide to probability and statistics (8th ed.). Pearson Prentice-Hall.
Cita Chicago (17th ed.)Walpole, Ronald E. Scientists & Engineers Guide to Probability and Statistics. 8th ed. Singapore: Pearson Prentice-Hall, 2007.
Cita MLA (9th ed.)Walpole, Ronald E. Scientists & Engineers Guide to Probability and Statistics. 8th ed. Pearson Prentice-Hall, 2007.
Atenció: Aquestes cites poden no estar 100% correctes.