Norris J. Lacy, Geoffrey Ashe, Debra N. Mancoff. Sarras in The Arthurian Handbook. Garland Reference Library of the Humanities (Book 1920). Routledge; 2nd edition (October 3, 1997) págs 348. ISBN 0815320817[1]
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Sarras no Projeto Camelot da Universidade de Rochester