Dyfyniad APA

American Journal of Ophthalmology. Ophthalmic Publishing.

Dyfyniad Arddull Chicago

American Journal of Ophthalmology. Chicago: Ophthalmic Publishing.

Dyfyniad MLA

American Journal of Ophthalmology. Ophthalmic Publishing.

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