TY  - BOOK
AU  - Hedderson, John
TI  - SPSS, PC  + made simple
SN  - 0534143768
U1  - 300.2855369 21st ed.
PY  - 1991///
CY  - California
PB  - Wordsworth Publishing Company
KW  - SPSS/PC+ (Computer system)
N1  - Index: p. 267-71
ER  -