Dunning, Thad,  1973- <br/><br/>
Natural experiments in the social sciences :  a design-based approach / 
Thad Dunning. 
 - Cambridge :  Cambridge University Press,  2012. 
 - xix, 358 p. ;  26 cm. 
 - Strategies for social inquiry. .
 - Strategies for social inquiry. .
<br/><br/>Includes bibliographical references (p. 338-352) and index. 
<br/><br/><label>ISBN: </label>9781107698000 (sftbd) 9781107017665 (hdbk)  RM306.60 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Social sciences--Experiments.<br/>Social sciences--Research.<br/>Experimental design.