Dyfyniad APA

Narcolepsy Fact Sheet (2017). National Institute of Neurological Disorders & Stroke.

Dyfyniad Arddull Chicago

Narcolepsy Fact Sheet (2017). National Institute of Neurological Disorders & Stroke.

Dyfyniad MLA

Narcolepsy Fact Sheet (2017). National Institute of Neurological Disorders & Stroke.

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