Cita APA

George, D. M. (2014). SPSS for windows step by step: A simple guide and refrence 18.0 update (11 edition.).

Chicago Edition Citation

George, Darren; Mallery. SPSS for Windows Step by Step: A Simple Guide and Refrence 18.0 Update. 11 edition. Pearson, 2014.

Cita MLA

George, Darren; Mallery. SPSS for Windows Step by Step: A Simple Guide and Refrence 18.0 Update. 11 edition. 2014.