Berkman, E. T., & Reise, S. P. (2012). A conceptual guide to statistics using SPSS. Sage.
Cita Chicago (17th ed.)Berkman, Elliot T., i Steven Paul Reise. A Conceptual Guide to Statistics Using SPSS. Los Angeles: Sage, 2012.
Cita MLA (9th ed.)Berkman, Elliot T., i Steven Paul Reise. A Conceptual Guide to Statistics Using SPSS. Sage, 2012.
Atenció: Aquestes cites poden no estar 100% correctes.