Dunbar, R., & Botha, R. (2009). Why only humans have language. Oxford University Press.
芝加哥风格引文Dunbar, R., 与 R. Botha. Why Only Humans Have Language. Oxford University Press, 2009.
MLA引文Dunbar, R., 与 R. Botha. Why Only Humans Have Language. Oxford University Press, 2009.
警告：这些引文格式不一定是100％准确.