APA (7th ed.) Citation

Loomis, R. S. (1963). The Grail, from Celtic myth to Christian symbol. University of Wales Press.

Chicago Style (17th ed.) Citation

Loomis, Roger Sherman. The Grail, from Celtic Myth to Christian Symbol. Cardiff: University of Wales Press, 1963.

MLA (8th ed.) Citation

Loomis, Roger Sherman. The Grail, from Celtic Myth to Christian Symbol. University of Wales Press, 1963.