TY  - BOOK
AU  - George,Darren, Mallery, Paul
AU  - x
TI  - SPSS for windows step by Step: a simple guide and reference 15.0 Update
SN  - 9788131724293
U1  - 005.27/G342s 
PY  - 2008///
CY  - New Delhi
PB  - Pearson Education
KW  - Programming
KW  - Compuetr science
ER  -