TY  - BOOK
AU  - Cameron, Stephen V.
AU  - Heckman James J
AU  - National Bureau Of Economic Research
TI  - Life cycle schooling and dynamic selection bias: models and evidence for five cohorts of American males
T2  - NBER Working Paper series
U1  - WP 6385 
PY  - 1998///
CY  - Cambridge, MA
PB  - NBER
ER  -