TY  - BOOK
AU  - Morgan, Stephen L.
AU  - Winship, Christopher 
TI  - Counterfactuals and Causal Inference: Methods and Principles for Social Research 
SN  - 1107694163
AV  - H62 .M67 2015 
PY  - 2015///
CY  - New York
PB  - Cambridge University Press
KW  - Social sciences
KW  - research
KW  - methodology
KW  - Causation
ER  -