APA aipamena

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

Chicago Style aipamena

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

MLA aipamena

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

Kontuz: berrikusi erreferentzia hauek erabili aurretik.