TY  - BOOK
AU  - Howitt,Dennis
AU  - Cramer,Duncan
TI  - Introduction to SPSS statistics in psychology: for version 19 and earlier 
SN  - 9780273734260 (pbk.)
PY  - 2011///
CY  - Harlow
PB  - Prentice Hall
KW  - Psychometrics
KW  - SPSS for Windows
KW  - Computer programs
ER  -