TY  - BOOK
AU  - George, Darren.
TI  - SPSS for Windows step by step : a simple guide and reference 17.0 update
SN  - 978-81-317-6225-7
U1  - 005.55 
PY  - 2011///
CY  - New Delhi
PB  - Pearson.
KW  - SPSS
ER  -