APA
DeLeire T., Timmins Christopher & National Bureau Of Economic Research. (2008). Roy Model Sorting and Non-Random Selection in the Valuation. Cambridge: NBER.
Chicago
DeLeire Thomas, Timmins Christopher and National Bureau Of Economic Research. 2008. Roy Model Sorting and Non-Random Selection in the Valuation. Cambridge: NBER.
Harvard
DeLeire T., Timmins Christopher and National Bureau Of Economic Research. (2008). Roy Model Sorting and Non-Random Selection in the Valuation. Cambridge: NBER.
MLA
DeLeire Thomas, Timmins Christopher and National Bureau Of Economic Research. Roy Model Sorting and Non-Random Selection in the Valuation. Cambridge: NBER. 2008.