TY  - BOOK
AU  - George,Darren
AU  - Mallery,Paul
TI  - SPSS for windows step by step: A simple guide and reference 18.0 update
SN  - 978-93-325-1812-4
U1  - 5.55 
PY  - 2015///
CY  - New Delhi
PB  - Pearson
KW  - Computer Engineering
ER  -