Cunningham, J. B., & Aldrich, J. O. (2012). Using SPSS: An interactive hands-on approach. SAGE.
Cita Chicago (17th ed.)Cunningham, James B., i James O. Aldrich. Using SPSS: An Interactive Hands-on Approach. Los Aneles: SAGE, 2012.
Cita MLA (9th ed.)Cunningham, James B., i James O. Aldrich. Using SPSS: An Interactive Hands-on Approach. SAGE, 2012.
Atenció: Aquestes cites poden no estar 100% correctes.