請求番号:M-E:305:114
A Companion to Piers Plowman / John Alford, editor ; : pbk. -- University of California Press, c1988. -- xii, 286 p. ; 24 cm.
請求番号:M-E:305:119
Piers Plowman and Christian allegory / David Aers. -- E. Arnold, 1975. -- ix, 141 p. ; 23 cm.
請求番号:M-E:305:120
William Langland / John Norton-Smith. -- E.J. Brill, 1983. -- 144 p. ; 21 cm. -- (Medieval and Renaissance authors ; v. 6).