Cita APA (7a ed.)

Howitt, D., & Cramer, D. (2020). Understanding statistics in psychology with SPSS (Eighth edition.). Pearson.

Cita Chicago Style (17a ed.)

Howitt, Dennis, y Duncan Cramer. Understanding Statistics in Psychology with SPSS. Eighth edition. Harlow, England: Pearson, 2020.

Cita MLA (8a ed.)

Howitt, Dennis, y Duncan Cramer. Understanding Statistics in Psychology with SPSS. Eighth edition. Pearson, 2020.