TY  - BOOK
AU  - Tyler, John H
AU  - Willett John B
AU  - Murnane Richard J
TI  - Estimating the impact of the ged on the earnings of young dropouts using a series of natural experiments
U1  - 6391 
PY  - 1998///
CY  - Cambridge, MA
PB  - NBER
ER  -