TY  - BOOK
AU  - Angrist Joshua D.
AU  -  Pischke Jorn-Steffen
TI  - Mastering metrics:  The path from cause to effect
U1  - D6,8(B),2, Q5 
PY  - 2015///
CY  - Oxford
PB  - Oxford University Press        
KW  - Financial Studies
ER  -