Dyfyniad APA

American Association of Suicidology. Suicide and life-threatening behavior. Guilford.

Dyfyniad Arddull Chicago

American Association of Suicidology. Suicide and Life-threatening Behavior. New York: Guilford.

Dyfyniad MLA

American Association of Suicidology. Suicide and Life-threatening Behavior. Guilford.

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