TY  - BOOK
AU  - Serfling, Robert J  .
TI  - Approximation theorems of mathematical statistics / 
SN  - 0-471-21927-4
U1  - B28 
PY  - 1980///
CY  - New York : 
PB  - John Wiley & Sons, Inc. , 
KW  - Statisitics
ER  -