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Dyfyniad Arddull ChicagoCross, Simon S. Underwood's Pathology: A Clinical Approach. 7th. Edinburg: Elsevier, 2014.
Dyfyniad MLACross, Simon S. Underwood's Pathology: A Clinical Approach. 7th. Elsevier, 2014.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.