APA Style
George, D., Mallery, P. (2022).
IBM SPSS Statistics 27 Step by Step: a simple guide and reference (17th Edition).
NEW YORK:
Routledge.
MLA Style
George, Darren., Mallery, Paul.
"IBM SPSS Statistics 27 Step by Step: a simple guide and reference".
17th Edition
NEW YORK:
Routledge,
2022.
Book.