Spiegel, M. R., & Stephens, L. J. (2008). Schaum's outline of theory and problems of statistics (4th. ed.). McGraw-Hill.
Citazione stile Chigago Style (17a edizione)Spiegel, Murray R., e Larry J. Stephens. Schaum's Outline of Theory and Problems of Statistics. 4th. ed. New York: McGraw-Hill, 2008.
Citatione MLA (9a ed.)Spiegel, Murray R., e Larry J. Stephens. Schaum's Outline of Theory and Problems of Statistics. 4th. ed. McGraw-Hill, 2008.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.