Kinnear, P. R., & Gray, C. D. (1997). SPSS for Windows made simple (2nd ed.). Psychology Press.
Cita Chicago Style (17a ed.)Kinnear, Paul R., y Colin D. Gray. SPSS for Windows Made Simple. 2nd ed. Hove, East Sussex: Psychology Press, 1997.
Cita MLA (9a ed.)Kinnear, Paul R., y Colin D. Gray. SPSS for Windows Made Simple. 2nd ed. Psychology Press, 1997.
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