Langland, W. (1968). The vision of William concerning Piers the Plowman. Oxford: The Clarendon Press.
シカゴスタイル引用形Langland, William. The Vision of William Concerning Piers the Plowman. Oxford: The Clarendon Press, 1968.
MLA引用形式Langland, William. The Vision of William Concerning Piers the Plowman. Oxford: The Clarendon Press, 1968.
警告: この引用は必ずしも正確ではありません.