TY  - BOOK
AU  - Freund,John E.
TI  - Modern elementary statistics
T2  - Prentice-Hall mathematics series
U1  - 311 21
PY  - 1967///
CY  - Englewood Cliffs, N.J. : 
PB  - Prentice Hall, 
KW  - ESTADISTICA
ER  -