Potter, C. (1983). Knock on wood: An encyclopedia of talismans, charms, superstitions & symbols. Beaufort Books.
芝加哥风格引文Potter, Carole. Knock on Wood: An Encyclopedia of Talismans, Charms, Superstitions & Symbols. New York: Beaufort Books, 1983.
MLA引文Potter, Carole. Knock on Wood: An Encyclopedia of Talismans, Charms, Superstitions & Symbols. Beaufort Books, 1983.
警告：这些引文格式不一定是100％准确.