TY  - BOOK
AU  - George,Darren
AU  - Mallery,Paul
TI  - SPSS for Windows step by step: a simple guide and reference, 14.0 update 
SN  - 0205515851
PY  - 2007///
CY  - Boston, Mass.
PB  - Pearson
KW  - SPSS for Windows
KW  - Socail sciences
KW  - Statistical methods
KW  - Computer programs
ER  -