00629nam a22002057a 4500 BD-DhUL 20160315130340.0 160315s2012 enka|||| |||| 001 0 eng d 9781107017665 BD-DhUL BD-DhUL 300.724 DUN Dunning, Thad. Natural experiments in the social sciences : a design-based approach / Thad Dunning. Cambridge : Cambridge University Press, 2012. xix, 358 p. : ill. ; 25 cm. GBP 21.99 Includes index. Social sciences Experiments ddc BK 48791 48791 0 0 ddc 0 300_724000000000000_DUN 0 NFIC 80680 DUL DUL GEN 2013-06-26 Purchased 300.724 DUN 479841 2016-03-15 01 2016-03-15 BK 0 0 ddc 0 300_724000000000000_DUN 0 NFIC 80681 DUL DUL GEN 2013-06-26 Purchased 300.724 DUN 479842 2016-03-15 02 2016-03-15 BK