TY  - BOOK
AU  - George, Darren & Mallery, Paul
TI  - SPSS for Windows step by step: a simple guide and reference 17.0 update
SN  - 9788131762257
U1  - 519.0285  GEO 
PY  - 2013///
CY  - New Delhi
PB  - Pearson
KW  - Statistical methods; SPSS for windows
ER  -