APA
Abadie A., National Bureau of Economic Research, Imbens G. M. & Zheng F. (2011). Robust inference for misspecified models conditional on covariates. Cambridge: NBER.
Chicago
Abadie Alberto, National Bureau of Economic Research, Imbens Guido M and Zheng Fanyin. 2011. Robust inference for misspecified models conditional on covariates. Cambridge: NBER.
Harvard
Abadie A., National Bureau of Economic Research, Imbens G. M. and Zheng F. (2011). Robust inference for misspecified models conditional on covariates. Cambridge: NBER.
MLA
Abadie Alberto, National Bureau of Economic Research, Imbens Guido M and Zheng Fanyin. Robust inference for misspecified models conditional on covariates. Cambridge: NBER. 2011.