TY  - BOOK
AU  - Hettmansperger, Thomas P.
AU  - Mckean, Joseph W.
TI  - Robust nonparametric statistical methods
T2  - Monographs on statistics and applied probability 
SN  - 9781439809082
U1  - 519.5 
PY  - 2011///
CY  - Boca Raton
PB  - CRC Press
ER  -