TY  - BOOK
AU  - Ashenfelter Orley C Ed.
AU  -  Card David Ed.
TI  - Handbook of Labour Economics
U1  - X:9, M6.3A-M6.3B-M6.3C/TD 
PY  - 1999///
CY  - North
PB  - Holland          
KW  - Labor Economics
ER  -