TY  - BOOK
TI  - Spss/pc+graphics. Version 4.0.1. [programa De Computo]
AV  - PROG. COMP. 
PY  - 1990///
CY  - Chicago, Ill.
PB  - Spss Inc.
N1  - Cib. 6917; Fact. 92, omicron 14548; Spss/pc+graphics : For The Ibm Pc/xt/at And Ps/2
N2  - Paquete manejador de datos estadisticos
ER  -