Animals in Celtic life and myth

Aldhouse-Green, Miranda J. (Miranda Jane)
London ; New York : Routledge, 1992.

Beowulf and the Celtic Tradition.

Puhvel, Martin, 1933-2016.
Waterloo : Wilfrid Laurier University Press, 2006.

Celtic Dragon Myth.

Campbell.
Hoboken : Taylor and Francis, 2014.

A fair stream of silver.

Moray, Ann.
New York : Morrow, 1965.

Historia regum Britanniae.

Geoffrey, of Monmouth, Bishop of St. Asaph, 1100?-1154.
Cambridge, Mass. : Mediaeval Academy of America, 1951.

History of the Kings of Britain

Geoffrey, of Monmouth, Bishop of St. Asaph, 1100?-1154.
New York : Dutton, [1958]
[New ed.]

Myths & legends of the Celtic race.

Rolleston, T. W. (Thomas William), 1857-1920.
London : G. G. Harrap & company, 1911.