Loomis, R. S. (1963). The grail: From Celtic myth to Christian symbol. University of Wales Press.
芝加哥风格引文Loomis, Roger Sherman. The Grail: From Celtic Myth to Christian Symbol. Cardiff: University of Wales Press, 1963.
MLA引文Loomis, Roger Sherman. The Grail: From Celtic Myth to Christian Symbol. University of Wales Press, 1963.
警告：这些引文格式不一定是100％准确.