APA
Johnson E. M., National Bureau of Economic Research & Rehavi M. M. (2013). Physicians treating physicians. Cambridge: NBER.
Chicago
Johnson Erin M, National Bureau of Economic Research and Rehavi M Marit. 2013. Physicians treating physicians. Cambridge: NBER.
Harvard
Johnson E. M., National Bureau of Economic Research and Rehavi M. M. (2013). Physicians treating physicians. Cambridge: NBER.
MLA
Johnson Erin M, National Bureau of Economic Research and Rehavi M Marit. Physicians treating physicians. Cambridge: NBER. 2013.