APA
Morefield G. B., National Bureau of Economic Research, Ribar D. C. & Ruhm C. J. (2011). Occupational status and health transitions. Cambridge: NBER.
Chicago
Morefield G Brant, National Bureau of Economic Research, Ribar David C and Ruhm Christopher J. 2011. Occupational status and health transitions. Cambridge: NBER.
Harvard
Morefield G. B., National Bureau of Economic Research, Ribar D. C. and Ruhm C. J. (2011). Occupational status and health transitions. Cambridge: NBER.
MLA
Morefield G Brant, National Bureau of Economic Research, Ribar David C and Ruhm Christopher J. Occupational status and health transitions. Cambridge: NBER. 2011.