APA Edition Citation

George, D., & Mallery, P. (2019). IBM SPSS statistics 25 step by step: A simple guide and reference (15th ed.). Routledge.

Chicago Edition Citation

George, Darren, and Paul Mallery. IBM SPSS Statistics 25 Step by Step: A Simple Guide and Reference. 15th ed. New York: Routledge, 2019.

MLA Edition Citation

George, Darren, and Paul Mallery. IBM SPSS Statistics 25 Step by Step: A Simple Guide and Reference. 15th ed. Routledge, 2019.

Warning: These citations may not always be 100% accurate.