Herbe t, Kathleen (2007). Anglo-Saxon Books. ISBN 1-898281-04-1 Vaughan Williams, Ralph and A.L. Lloyd (1959). Penguin. Wood, Pete. «John Barleycorn: The Evolution of a Folk-Sang Family», , Vol. 8, pp 438-455, 2004 Wood, Pete. «John Barleycorn revisited: Evolution and folk-sang», Article 232,