TY  - BOOK
ED  - SPSS Inc. 
TI  - SPSS base system syntax reference guide release 6.0
SN  - 0131793918
PY  - 1993///.
CY  - Chicago
PB  - SPSS
KW  - Social sciences
KW  - Data processing.
KW  - SPSS Base System Reference Guide (Computer program)
N1  - Includes index
ER  -