Black, T. R. (1999). Doing quantitative research in the social sciences: an: Integrated approach to research design, measurement and statistics. Sage.
Dyfyniad Arddull ChicagoBlack, Thomas R. Doing Quantitative Research in the Social Sciences: An: Integrated Approach to Research Design, Measurement and Statistics. London: Sage, 1999.
Dyfyniad MLABlack, Thomas R. Doing Quantitative Research in the Social Sciences: An: Integrated Approach to Research Design, Measurement and Statistics. Sage, 1999.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.