The book concerning Piers the plowman:

Eitemau Tebyg

• Piers Plowman: the prologue and passus I-VII of the B text as found in Bodleian MS. Laud Misc. 581;
  gan: Langland, William
  Cyhoeddwyd: (1972)
• Piers Plowman /
  gan: Langland, William
  Cyhoeddwyd: (1978)
• Piers the Plowman /
  gan: Langland, William
  Cyhoeddwyd: (1968)
• Vision of William concerning piers the plowman/
  gan: Langland,William
  Cyhoeddwyd: (1869)
• Selections from Piers Plowman
  gan: Wilcockson, Colin
  Cyhoeddwyd: (1965)