TY  - GEN
AU  - Spence, Janet T.
AU  - Cotton, John W.
AU  - Underwood, Benton J.
AU  - Duncan, Carl P.
TI  - Elementary statistics 
SN  - 0132600765
PY  - 1990///
CY  - Englewood Cliffs, N.J.: 
PB  - Prentice-Hall
KW  - Psychology
KW  - Statistical methods
KW  - Psychometrics
ER  -