TY  - BOOK
AU  - DeLeire, Thomas
AU  - Timmins Christopher
AU  - National Bureau Of Economic Research
TI  - Roy Model Sorting and Non-Random Selection in the Valuation
PY  - 2008///
CY  - Cambridge
PB  - NBER
UR  - http://elibrary.igidr.ac.in/e-library/working papers/NBER/2008/E5.pdf
ER  -