TY  - BOOK
AU  - George,Darren
AU  - Mallery,Paul
TI  - SPSS for Windows step by step: a simple guide and reference, 15.0 update 
SN  - 9780205569076
AV  - HA32  .G46 2008
PY  - 2008///
CY  - Boston, MA
PB  - Pearson
KW  - SPSS for Windows
KW  - Social sciences
KW  - Statistical methods
KW  - Computer programs
ER  -