Langland, W., Salter, E., & Pearsall, D. (1967). Piers Plowman. Edward Arnold.
芝加哥风格引文Langland, William, Elizabeth Salter, 与 Derek Pearsall. Piers Plowman. London: Edward Arnold, 1967.
MLA引文Langland, William, et al. Piers Plowman. Edward Arnold, 1967.
警告：这些引文格式不一定是100％准确.