TY  - BOOK
AU  - MORGAN, Stephen.L
AU  - WINSHIP, Christopher.
TI  - Counterfactuals and Causal Inference: methods and principles for social research
SN  - 9780521671934
U1  - 300.72 
PY  - 2007///
CY  - Delhi
PB  - Cambridge university press
KW  - Causation 2. Social sciences--Methodology 3. Social sciences--Research
ER  -