TY  - BOOK
AU  - Leech,Nancy L.
AU  - Morgan,George A.
AU  - Barrett,Karen Caplovitz
TI  - IBM SPSS for intermediate statistics: use and interpretation 
SN  - 9780415880473 (pbk.)
PY  - 2011///
CY  - London
PB  - Routledge Academic
KW  - SPSS (Computer file)
KW  - Social sciences
KW  - Statistical methods
KW  - Computer programs
ER  -