TY  - BOOK
AU  - Darren, George
TI  - SPSS for Windows Step by Step: A Simple Guide and Reference 15.0 Update
SN  - 9788131724293
U1  - 515 
PY  - 2009///
CY  - New Delhi
PB  - Pearson Education
KW  - Windows
N1  - SPSS for Windows
ER  -