APA
Chaloupka F. J., National Bureau of Economic research, Levy M. R. & White J. S. (2019). Estimating biases in smoking cessation. Cambridge: NBER.
Chicago
Chaloupka Frank J, National Bureau of Economic research, Levy Matthew R and White Justin S. 2019. Estimating biases in smoking cessation. Cambridge: NBER.
Harvard
Chaloupka F. J., National Bureau of Economic research, Levy M. R. and White J. S. (2019). Estimating biases in smoking cessation. Cambridge: NBER.
MLA
Chaloupka Frank J, National Bureau of Economic research, Levy Matthew R and White Justin S. Estimating biases in smoking cessation. Cambridge: NBER. 2019.