TY  - BOOK
AU  - Steel, Robert George Douglas.
AU  - Torrie, James Hiram.
TI  - Introduction to statistics
T2  - McGraw-Hill series in probability and statistics
U1  - 519.5 
PY  - 1976///
CY  - New York
PB  - McGraw-Hill
KW  - Estadística
ER  -