TY  - BOOK
AU  - Angrist, Joshua David 
AU  -  Pischke, Jorn-Steffen
TI  - Mostly harmless econometrics : : an empiricist's companion 
SN  - 9780691120355
U1  - 330.015195 
PY  - 2009///
CY  - Princeton
PB  -  Princeton University Press, 
KW  - Econometrics.
KW  - Regression analysis.
KW  - Econometrie
ER  -