Opie, C., Opie, C., & Shultz, S. (2013). The evolution of social systems in human and non-human primates.
芝加哥风格引文Opie, C., Christopher Opie, 与 S. Shultz. The Evolution of Social Systems in Human and Non-human Primates. 2013.
MLA引文Opie, C., et al. The Evolution of Social Systems in Human and Non-human Primates. 2013.
警告：这些引文格式不一定是100％准确.