TY  - BOOK
AU  - Dunning,Thad
TI  - Natural experiments in the social sciences: a design-based approach 
T2  - Strategies for social inquiry
SN  - 9781107698000 (sftbd)
PY  - 2012///
CY  - Cambridge
PB  - Cambridge University Press
KW  - Social sciences
KW  - Experiments
KW  - Research
KW  - Experimental design
N1  - Includes bibliographical references (p. 338-352) and index
ER  -