Dyfyniad APA

Thad Dunning. (2012). Natural Experiments in the Social Sciences (1.). Cambridge University Press.

Dyfyniad Arddull Chicago

Thad Dunning. Natural Experiments in the Social Sciences. 1. Cambridge University Press, 2012.

Dyfyniad MLA

Thad Dunning. Natural Experiments in the Social Sciences. 1. Cambridge University Press, 2012.

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