Knell, S. J. (2012). The great fossil enigma: The search for the conodont animal. Indiana University Press.
芝加哥风格引文Knell, Simon J. The Great Fossil Enigma: The Search for the Conodont Animal. Bloomington: Indiana University Press, 2012.
MLA引文Knell, Simon J. The Great Fossil Enigma: The Search for the Conodont Animal. Indiana University Press, 2012.
警告：这些引文格式不一定是100％准确.