Lyle, M. C. (1919). The original identity of the York and Towneley cycles. s.n.
Dyfyniad Arddull ChicagoLyle, Marie Caroline. The Original Identity of the York and Towneley Cycles. [Minneapolis, Minn: s.n, 1919.
Dyfyniad MLALyle, Marie Caroline. The Original Identity of the York and Towneley Cycles. s.n, 1919.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.