Balafoutas, L., Nikiforakis, N., & Rockenbach, B. (2014). Direct and indirect punishment among strangers in the field. Proc Natl Acad Sci U S A.
استشهاد بنمط شيكاغوBalafoutas, Loukas, Nikos Nikiforakis, و Bettina Rockenbach. "Direct and Indirect Punishment Among Strangers in the Field." Proc Natl Acad Sci U S A 2014.
MLA استشهادBalafoutas, Loukas, Nikos Nikiforakis, و Bettina Rockenbach. "Direct and Indirect Punishment Among Strangers in the Field." Proc Natl Acad Sci U S A 2014.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.