TY  - BOOK
ED  - SPSS Inc.
TI  - SPSS reference guide
SN  - 0918469627
U1  - 005.55  23
PY  - 1990///.
CY  - Chicago: 
PB  - SPSS Inc., 
KW  - SPSS (Computer file)
N1  - Includes index
ER  -