Cramer, D. (1998). Fundamental statistics for social research: Step by step calculations and computer techniques using. Routledge.
Cita Chicago (17th ed.)Cramer, Duncan. Fundamental Statistics for Social Research: Step by Step Calculations and Computer Techniques Using. London: Routledge, 1998.
Cita MLA (9th ed.)Cramer, Duncan. Fundamental Statistics for Social Research: Step by Step Calculations and Computer Techniques Using. Routledge, 1998.
Atenció: Aquestes cites poden no estar 100% correctes.