Bryman,Alan. (2011). Quantitative Data Analysis with IBM SPSS 17, 18 & 19: A Guide for Social Scientists (1st edition.). Routledge.
Cita Chicago (17th ed.)Bryman,Alan. Quantitative Data Analysis with IBM SPSS 17, 18 & 19: A Guide for Social Scientists. 1st edition. New york: Routledge, 2011.
Cita MLA (9th ed.)Bryman,Alan. Quantitative Data Analysis with IBM SPSS 17, 18 & 19: A Guide for Social Scientists. 1st edition. Routledge, 2011.
Atenció: Aquestes cites poden no estar 100% correctes.