Clements, H. (1982). Hérnia. Presença.
Dyfyniad Arddull ChicagoClements, Harry. Hérnia. Presença, 1982.
Dyfyniad MLAClements, Harry. Hérnia. Presença, 1982.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.
Clements, H. (1982). Hérnia. Presença.
Dyfyniad Arddull ChicagoClements, Harry. Hérnia. Presença, 1982.
Dyfyniad MLAClements, Harry. Hérnia. Presença, 1982.