Spiegel, M. R. (1981). Theory and problems of statistics (1st edition.). McGraw-Hill.
Citazione stile Chigago Style (17a edizione)Spiegel, Murray R. Theory and Problems of Statistics. 1st edition. New York: McGraw-Hill, 1981.
Citatione MLA (9a ed.)Spiegel, Murray R. Theory and Problems of Statistics. 1st edition. McGraw-Hill, 1981.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.