Spiegel, M. R. (1981). Schaum`s outline theory and problems of statistics: In SI units. McGraw-Hill.
Cita Chicago (17th ed.)Spiegel, Murray R. Schaum`s Outline Theory and Problems of Statistics: In SI Units. Nueva York: McGraw-Hill, 1981.
Cita MLA (9th ed.)Spiegel, Murray R. Schaum`s Outline Theory and Problems of Statistics: In SI Units. McGraw-Hill, 1981.
Atenció: Aquestes cites poden no estar 100% correctes.