TY  - BOOK
AU  - Leech,Nancy L.
AU  - Barrett,Karen C.
AU  - Morgan,George A.
TI  - SPSS for intermediate statistics: use and interpretation 
SN  - 0805862676
PY  - 2008///
CY  - New York
PB  - Lawrence Erlbaum
KW  - Social science
KW  - Statistical methods
KW  - Computer program
ER  -