Penhallurick, R. D. (1986). Tin in antiquity: Its mining and trade throughout the ancient world with particular reference to Cornwall. Institute of Metals.
芝加哥风格引文Penhallurick, Roger David. Tin in Antiquity: Its Mining and Trade Throughout the Ancient World with Particular Reference to Cornwall. London: Institute of Metals, 1986.
MLA引文Penhallurick, Roger David. Tin in Antiquity: Its Mining and Trade Throughout the Ancient World with Particular Reference to Cornwall. Institute of Metals, 1986.
警告：这些引文格式不一定是100％准确.