Black, T. R. (1999). Doing quantitative research in the social sciences. SAGE.
Cita Chicago (17th ed.)Black, Thomas R. Doing Quantitative Research in the Social Sciences. London: SAGE, 1999.
Cita MLA (8th ed.)Black, Thomas R. Doing Quantitative Research in the Social Sciences. SAGE, 1999.
Atenció: Aquestes cites poden no estar 100% correctes.