Dyfyniad APA

Illingworth, G. (2020). The challenges of adolescent sleep. The Royal Society.

Dyfyniad Arddull Chicago

Illingworth, G. The Challenges of Adolescent Sleep. The Royal Society, 2020.

Dyfyniad MLA

Illingworth, G. The Challenges of Adolescent Sleep. The Royal Society, 2020.

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