Dyfyniad APA

Depression & Anxiety (Medletter). UC Berkeley School of Public Health.

Dyfyniad Arddull Chicago

Depression & Anxiety (Medletter). UC Berkeley School of Public Health.

Dyfyniad MLA

Depression & Anxiety (Medletter). UC Berkeley School of Public Health.

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