TY  - BOOK
AU  - GEORGE, Darren
TI  - SPSS for Windows Step by Step: a simple guide and reference 18.0 Update
SN  - 9789332518124
U1  - 005.55 
PY  - 2011///
CY  - New Delhi
PB  - Pearson
KW  - Social sciences -- Statistical methods -- Computer programs
KW  - SPSS for Windows
ER  -