Cita APA (7th ed.)

Allen, P. (2019). SPSS statistics: A practical guide (4th edition.). Cengage Learning.

Cita Chicago (17th ed.)

Allen, Peter. SPSS Statistics: A Practical Guide. 4th edition. South Melbourne, Victoria, Australia: Cengage Learning, 2019.

Cita MLA (9th ed.)

Allen, Peter. SPSS Statistics: A Practical Guide. 4th edition. Cengage Learning, 2019.