Spiegel, M. R., & Stephens, L. J. (2018). Schaum's outline of statistics (Sixth edition.). McGraw-Hill Higher Education.
Cita Chicago (17th ed.)Spiegel, Murray R., i Larry J. Stephens. Schaum's Outline of Statistics. Sixth edition. New York: McGraw-Hill Higher Education, 2018.
Cita MLA (9th ed.)Spiegel, Murray R., i Larry J. Stephens. Schaum's Outline of Statistics. Sixth edition. McGraw-Hill Higher Education, 2018.
Atenció: Aquestes cites poden no estar 100% correctes.