ebrary, Inc, & Waterfield, R. (2000). The first philosophers: The presocratics and sophists. Oxford University Press.
芝加哥风格引文ebrary, Inc, 与 Robin Waterfield. The First Philosophers: The Presocratics and Sophists. Oxford ; New York: Oxford University Press, 2000.
MLA引文ebrary, Inc, 与 Robin Waterfield. The First Philosophers: The Presocratics and Sophists. Oxford University Press, 2000.
警告：这些引文格式不一定是100％准确.