TY  - BOOK
AU  - Levitt,Steven D.
AU  - Porter,Jack
TI  - Sample selection in the estimation of air bags and seat belteffectiveness
AV  - TL159.5 L484S
PY  - 1999///
CY  - Cambridge, Mass
PB  - National Bureau of Economic Research
KW  - AIR BAG RESTRAINT SYSTEMS
KW  - UNITED STATES
KW  - AUTOMOBILES
KW  - SEAT BALTS
KW  - SAFETY APPLIANCES
ER  -