TY  - BOOK
AU  - George,Darren
AU  - Mallery,Paul
TI  - IBM SPSS statistics 25 step by step: a simple guide and reference 
U1  - 519.5 23
PY  - 2018///
CY  - London
PB  - Routledge
KW  - SPSS (Computer file)
KW  - Social sciences
KW  - Statistical methods
KW  - Computer programs
ER  -