TY  - GEN
AU  - Voelkl, Kristin E.
AU  - Gerber, Susan B.
TI  - Using SPSS for windows: data analysis and graphics
SN  - 0387985638
U1  - 519.5078 
PY  - 1999///
CY  - New York
PB  - Springer
KW  - PROBABILITIES AND APPLIED METHEMATICS
ER  -