TY  - BOOK
AU  - George, Darren
AU  - Paul Mallery
TI  - SPSS for Windows step by step: A simple guide and reference
SN  - 0205316557
AV  - HA 32 .G46 2000 
PY  - 2000///
CY  - Toronto
PB  - Allyn and Bacon
ER  -