Citation:Warneken F, Jordan J, McAuliffe K. Development of in-group favoritism in children’s third-party punishment of selfishness. Proceedings of the National Academy of Sciences. 2014;111 (35) :12710-12715.Download CitationBibTeX RTF Tagged EndNote XML RIS See also: Developmental PsychologyLast updated on 09/03/2015 RTFRIS