TY  - GEN
AU  - George, Darren
AU  - Mallery, Paul
TI  - SPSS for windows step by step: a simple guide and reference 13.0 update
SN  - 8131703940
U1  - 005.3 
PY  - 2007///
CY  - New Delhi
PB  - Pearsons Education
KW  - Computer Science
ER  -