TY  - GEN
AU  - Gray, Colin D
AU  - Kinnear, Paul R
TI  - IBM SPSS Statistics 19 made simple
SN  - 9781848720695
PY  - 2012///
CY  - Sussex
PB  - Psychology press
KW  - SPSS - Statistical software
KW  - Social sciences - statistical methods - computer programme
ER  -