TY  - BOOK
AU  - Freund,John E.
AU  - Williams,Frank J
TI  - Elementary business statistics: the modern approach
SN  - 0-13-253039-2
U1  - 519.5/F896 
PY  - 1972///
CY  - Englewood Cliffs, Estados Unidos 
PB  - Prentice-Hall.
KW  - ESTADISTICA
ER  -