Piers Plowman with Sir Gawain and the green knight, Pearl and Sir Orfeo (anon.) / William Langland ; Piers Plowman translated by Terence Tiller Sir Gawain, Pearl and Sir Orfeo translated by J.R.R. Tolkien and edited by Christopher Tolkien ; with an introduction by John Burrow.    London : Everyman Publishers, 2001 . xxxi, 459 s. . ISBN 1-85715-224-7 - C 161.655