APA
Kirkeboen L., National Bureau of Economic Research, Leuven E. & Mogstad M. (2014). Field of study, earnings and self-selection. Cambridge: NBER.
Chicago
Kirkeboen Lars, National Bureau of Economic Research, Leuven Edwin and Mogstad Magne. 2014. Field of study, earnings and self-selection. Cambridge: NBER.
Harvard
Kirkeboen L., National Bureau of Economic Research, Leuven E. and Mogstad M. (2014). Field of study, earnings and self-selection. Cambridge: NBER.
MLA
Kirkeboen Lars, National Bureau of Economic Research, Leuven Edwin and Mogstad Magne. Field of study, earnings and self-selection. Cambridge: NBER. 2014.