Dyfyniad APA

(1902). Surgical Treatment of Gall-Stones. Hospital (Lond 1886).

Dyfyniad Arddull Chicago

"Surgical Treatment of Gall-Stones." Hospital (Lond 1886) 1902.

Dyfyniad MLA

"Surgical Treatment of Gall-Stones." Hospital (Lond 1886) 1902.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.