Klescka, W. R. (1975). SPSS primer: Statistical for the social sciences primer. Mc Graw Hill.
Cita Chicago (17th ed.)Klescka, William R. SPSS Primer: Statistical for the Social Sciences Primer. Mc Graw Hill, 1975.
Cita MLA (9th ed.)Klescka, William R. SPSS Primer: Statistical for the Social Sciences Primer. Mc Graw Hill, 1975.
Atenció: Aquestes cites poden no estar 100% correctes.