TY  - BOOK
AU  - Li Qi
AU  -  Racine Jeffrey Scott
TI  - Nonparametric econometrics:  Theory and practice.   
SN  - 9780691121611
U1  - X:(B), P7 
PY  - 2007///
CY  - Princeton
PB  - Princeton University Press        
KW  - Economics
N1  - Bibliography: P 697-736
ER  -