Cita APA

Cunningham, J. B., & Aldrich, J. O. (2012). Using SPSS: An interactive hands- on approach. Sage publications.

Chicago Edition Citation

Cunningham, James B., i James O. Aldrich. Using SPSS: An Interactive Hands- on Approach. London: Sage publications, 2012.

Cita MLA

Cunningham, James B., i James O. Aldrich. Using SPSS: An Interactive Hands- on Approach. Sage publications, 2012.