TY  - BOOK
AU  - Ashenfelter, Orley C. and Card, David, ed.
TI  - Handbook of labor economics
T2  - Handbooks in economics; no. 5
SN  - 9780444501882
U1  - 331 
PY  - 1999///
CY  - Amsterdam
PB  - North Holland
UR  - http://www.sciencedirect.com/science/handbooks/15734463/3/part/PB
ER  -