Fielding, J. L., & Gilbert, G. N. (2000). Understanding social statistics. Sage.
Cita Chicago (17th ed.)Fielding, Jane L., i G. Nigel Gilbert. Understanding Social Statistics. London: Sage, 2000.
Cita MLA (9th ed.)Fielding, Jane L., i G. Nigel Gilbert. Understanding Social Statistics. Sage, 2000.
Atenció: Aquestes cites poden no estar 100% correctes.